Or how places, regions, and nations earn a living. ECONOMIC BASE THEORY - COMPARATIVE COST The basis of economic base theory (aka export base theory) is the market hypothesis: "An area's growth rate depends on the export demand for goods and services in which the area has a delivered cost advantage." In other words, an area (city, region, nation) must trade to survive, and it must trade in those goods that it can produce relatively cheaper than other places. This is called comparative cost advantage. And it is the heart of spatial market economics. ECONOMIC BASE THEORY - COMPARATIVE COST This is a very important economic concept to understand about spatial markets. Comparative cost advantage does not mean that a nation/region has to produce goods more cheaply in absolute terms than other nations/regions. It means that you can produce goods more cheaply in relative terms than your competitors can. In fact, and here’s the subtle part: you will trade even if you are better at everything than your competitor, and they can trade even if they are worse at everything than you! ECONOMIC BASE THEORY - COMPARATIVE COST It all has to do with the opportunity cost of producing (or in this case not producing) different goods. That is, even if you are better than everyone else at producing two items, you may be much better at producing one of those things. This means that you would be better served by producing more of the thing you can produce more profitably, than by producing both things. By analogy, there are neurosurgeons who may be excellent typists. But it would not make much economic sense for a neurosurgeon to work at being a typist. ECONOMIC BASE THEORY - COMPARATIVE COST Units of input needed to produce 100 cars Units of input needed to produce 1,000 computers Canada 2 units of input (50 cars for each unit of input) 3 units of input (333 computers for each unit of input) Italy 4 units of input (25 cars for each unit of input) 4 units of input (250 computers for each unit of input) Canada produces 2 times as Canada produces about 1.3 Diff per many cars as Italy per unit of times more computers as Italy unit input. per unit of input. Canada produces both items more cheaply per unit than Italy in absolute terms but Canada is better relatively at producing cars than computers – 2 times versus 1.3 times. Thus, if Canada used all of its inputs for cars, it would get more cars than computers, than if it used all of its inputs for computers. ECONOMIC BASE THEORY - COMPARATIVE COST Cost to produce 100 cars Cost to Cars “lost” because Computers "lost” produce you produce because you 1,000 computers produce cars computers 2 units Canada (50 each) 3 units (333 each) 150 (3 units*50) 666 (2 units*333) 4 units (25 each) 4 units (250 each) 100 (4 units*25) 1,000 (4 units*250) Italy So if Canada and Italy choose not to produce computers and redirect their resources to producing cars, Canada can produce more extra cars that Italy. And if Canada and Italy choose not to produce cars but redirect their resources to producing computers, then Italy can produce more extra computers that Canada. ECONOMIC BASE THEORY - COMPARATIVE COST As can be seen from the example, even though Canada is more efficient than Italy at producing both products (computers and cars), Canada is much better at producing cars. It will, therefore, produce cars and leave computers to Italy. In Theory at least ECONOMIC BASE THEORY - COMPARATIVE COST Economic Base Theory (EBT) postulates two parts to an economy: The basic sector (aka the export or traded sector): Activities in this sector earn export income for the area. E.G. a factory. The non-basic sector (aka the local or non-traded sector): Activities in this sector do not earn export income for an area - they are the support activities for the basic sector. E.G. a retail store. However, as we shall see, factories and stores can be both. ECONOMIC BASE THEORY - BASIC NON-BASIC ACTIVITIES The EBT relationship: Non-basic activities support the basic activities, while basic activities in turn support the economic health of the area. Elements: Basic economic activity (income earning). Non-basic economic activity (supports basic activity). Household multiplier (supports basic and non-basic). Linkages (connections between the elements). ECONOMIC BASE THEORY - BASIC NON-BASIC ACTIVITIES Basic economic activity (income earning) includes: Exports: goods, export services, tourism, extra-local retail. Investments: housing, business infrastructure e.g. offices and factories, urban infrastructure e.g. roads, etc. Government Expenditures: government spending, current operations, transfer payments, etc. Basic activities are considered "exogenous" in the EBT model - i.e. independently introduced and/or stimulated from outside the region/nation. ECONOMIC BASE THEORY - BASIC NON-BASIC ACTIVITIES Non-basic economic activity (not income earning) includes: Local oriented activities such as retail, services, local public sector such as schools, police. They support basic activities. Basic activities are considered “endogenous" in the EBT model - i.e. effects are generated by supply/demand relationships within the region/nation. Basic question to help determine if basic or non-basic: Would this activity survive on its own? ECONOMIC BASE THEORY - BASIC NON-BASIC ACTIVITIES Basic economy driven by external dollars. $$$$$$ Regional Economy Local Economy $$$$$$ Local economy driven by the basic economy. EXPORT INCOME Growing basic activities generate jobs and export income Growing area attracts more basic activities. Area infrastructure grows as prosperity grows. EXPORT DEMAND Non-basic activities required to support basic sector. Jobs and local income generated. Household multiplier ECONOMIC BASE THEORY - BASIC NON-BASIC ACTIVITIES EXPORT INCOME DECLINES Declining basic activities decrease jobs and export income Declining area discourages more basic activities. Area infrastructure stagnates as prosperity declines. EXPORT DEMAND Non-basic activities required to support basic sector decline. Jobs and local income are lost. Household multiplier ECONOMIC BASE THEORY - BASIC NON-BASIC ACTIVITIES Two of the major problems in conceptualising and operationalizing EBT are: Defining the spatial areas involved – that is, what does “outside” the region and hence exports mean? Determining which activities or proportion of an activity are basic and which are non-basic; that is, what activities are export? ECONOMIC BASE THEORY - DEFINING AREAS Basic and non-basic proportions can be measured in terms of employment, production, sales etc. Employment is usually used. Economic activity #1 20% Consumer #2 100% 80% Area A Consumer #1 80% Economic activity #1 is non-basic to Area A. Economic activity #1 is basic & non-basic to Area A. Economic 20% Economic activity #1 is non-basic to national economy. activity #2 Economic activity #2 is basic to Nation B. Nation B Economic activity #2 is basic & non basic to Nation B. ECONOMIC BASE THEORY - DEFINING AREAS Primary Sector: resource extraction activities, such as agriculture, mining, lumber. Secondary Sector: manufacturing or goods producing activities. Tertiary Sector: services activities such as retail, wholesale, tourism, health care, banking, etc. Quaternary sector: involves activities of the socalled intellectual/information sector, such as government, education, culture, information, scientific research. ECONOMIC BASE THEORY - DEFINING ACTIVITIES Simple model: Primary and secondary activities are basic and all others are non-basic. Strength: Easily understood and easy to apply. Weakness: Completely unrealistic, especially in today’s globalized service based economy. Realistic model: That all activities have some proportion of their output as both basic and non-basic. Strength: Much more realistic. Weakness: Much more difficult to measure and apply. ECONOMIC BASE THEORY - DEFINING ACTIVITIES Forestry Electronics Electronics store Schools Farm Auto maker Auto Dealer Grocery store University ECONOMIC BASE THEORY - DEFINING ACTIVITIES Resources sector Manufacturing sector Services sector LOCAL EXPORTS IMPORTS HOUSEHOLD Quaternary sector Forestry Electronics Electronics store Schools Farm Auto maker Auto Dealer Grocery store University ECONOMIC BASE THEORY - DEFINING ACTIVITIES Resources sector Manufacturing sector Services sector LOCAL EXPORTS IMPORTS HOUSEHOLD Quaternary sector EBT is linked to the overall socio-economic structure of communities in terms of local and non-local inputs and outputs, and their relative strengths. So… When a factory that exports goods opens (or closes) not only will the factory jobs be gained (or lost), but non-basic support jobs that depended on the factory jobs will also be gained (or lost). On the other hand, if a non-basic activity (such as a retail store) closes down, only the jobs from that store will be lost. This relationship is conceptualised in the basic/non-basic ratio and the multiplier concept. ECONOMIC BASE THEORY - RATIO AND MULTIPLIER Number of non-basic jobs Number of basic jobs For example, if 60% of the employment in a place is non-basic, and 40% is therefore basic, the NB:B ratio is 60/40, or 1.5, meaning that there are 1.5 non-basic jobs for every basic job. Thus, we can say that NB = f(B), which leads us to the very important concept of the economic multiplier. ECONOMIC BASE THEORY - RATIO AND MULTIPLIER Postulates that changes in basic activity in an economy ripples through or multiplies its effect due to the relationship between basic and non-basic activities. The relationship NB = f(B) generates the previously discussed NB:B ratio, with the total impact or multiplier being: M± = 1 + (NB/B) Using the previous numbers (NB = 60%, B = 40%): M± = 1 + (60/40) = 2.5 Thus, if a new factory opens in an area, the total impact on the employment structure of the area will be 2.5 jobs: 1 new basic job and 1.5 non-basic jobs. ECONOMIC BASE THEORY - RATIO AND MULTIPLIER This model can be developed even further to incorporate all the iterations that must be accounted for when a new basic job is created: TE = DE + IE + ME + FE + HD 2.5 where, TE: total induced employment. DE: Direct induced employment (basic export jobs, all B). IE: Indirect induced employment (spin-off industries NB + some B). ME: Indirect municipal employment (services & NB jobs, mostly NB). FE: Indirect final demand (created by iteration, all NB).* HD: Indirect household demand (created by families of workers, all NB). *Iteration is the process by which non-basic jobs create other nonbasic jobs, etc. ECONOMIC BASE THEORY - RATIO AND MULTIPLIER May all seem pretty easy and it is – it’s just arithmetic after all. But the devil is in the details. To calculate an economic base, even assuming the f in NB+(f)B, and the relationships are all constant over time as space, you would need: Accurate and timely employment data for economic activities. Some type of categorization for those activities, at a small enough sectoral scale to be useful (resource, manufacturing, service sectors is not). Are the data available at a small enough spatial scale for your community. Do we have all this? And if so where would one find all this? ECONOMIC BASE THEORY - RATIO AND MULTIPLIER It assumes that a relationship exists between B and NB jobs, which is probably O.K., but is this relationship constant: Over time? Do we get more efficient at providing non-basic jobs; I.E. the relationship between the basic and non-basic sectors is curvilinear and not linear. Over city size? Are larger cities more efficient at providing support for new basic jobs, given scale economies? Over magnitude of B? That is, does every one of the new B jobs generate in the same ratio as the first? Backwards?? That is, does the negative multiplier work in the same ratio as the positive multiplier? What proportion of the NB jobs are actually B? People who use malls in a place do not all come from that place. The two problems mentioned earlier with respect to boundaries and exactly what activities are B and NB. ECONOMIC BASE THEORY - ISSUES Despite the issues, EBT has much utility in conceptualizing, describing and explaining why spatial economies work the way that they do and we will be returning to it on many occasions throughout this course. We will look at some of the empirical ways in which EBT can be measured in the methods and data lecture. ECONOMIC BASE THEORY - ISSUES Read Word docs on what to do, process flowchart, proposal example table, and the PDFs of good and poor proposals. This is a research proposal and that is what you will be graded on and not the topic you choose. Do not pick a huge topic that is undoable because: You can’t get the data. You need too much data. It’s too complex for this level. There really isn’t any cause and effect to find. Any topic in economic geography will do – that means find something within the lecture areas dealt with in this course. I have uploaded the lecture slides on data classification and methods, in case you need the material. We won’t do this stuff in class due to time constraints. Getting data depends on the scale at which you choose to work so the rule of thumb is: The more detail you want, the harder it becomes to get the data – for example: • Global data are easy to find on any topic – city data are not. • Some variables such as employment are common - other variables such as capital investment are not. • Data on big economic activities such as rubber manufacturing are easy to find – data on the condom industry are not. • The further back in time you go, the harder the data will be to find and convert to constant dollars. • Annual data are easy to find – quarterly are not. So – keep it simple and larger scale. This project requires you to formulate a research question and then answer it. To do that you need: A context – some area you are interested in that can generate… ???A question – one that can be answered with data.??? A way of answering it – have expectations that state… This variable for this place over this time period should do this thing if my research question is correct. Some examples: You have a few detailed examples already done in the handouts for the assignment. Read through them and understand what they are trying to do. CONTEXT RESEARCH QUESTION POTENTIAL PROBLEMS Globalisation should have led to more trade than production as a proportion of GDP. Has global trade value grown faster than global manufacturing value as proportions of GDP? Can you get global values on trade, manufacturing and GDP? Climate change has increased/decreased yield of maple sap leading to increases/decreases in maple syrup production in Canada/Quebec. (You find out which it is). Has global production of Very detailed data required maple syrup, and temperature for maple syrup production? increased/decreased over the Are temperatures actually past 100 years? increasing/decreasing at small regional scales such as Quebec? Globalisation should have led to increasing national incomes and demographic development. Lots here. Has income increased at all and has it led to any or all of: Declining birth/death/ fertility rates. Changed demographic transition Not many, all data are available for regional groups of nations from UN, World Bank, IMF, Population Reference Bureau, etc. You have a few detailed examples already done in the handouts for the assignment. Read through them and understand what they are trying to do. EXPECTATIONS DATA SOURCES METHODS Trade as a % of GDP should have increased faster than manufacturing (industry) since 1960. World and regional (e.g. high, middle, low income nations) data from World Bank Indicators or IMF. Three graphs one each for regions, with trade and industry proportions plotted. As climate has warmed, maple For syrup production don’t syrup production has know, but maybe Stats Canada increased (say). Could ask “has or Maple Syrup Association. temperature affected For temperature, Environment production?” Canada, Weather Network maybe. GDP per capita in constant dollars should have increased and led to decreases/changes in whatever demographic variable(s)/model you like. World Bank, U.N., IMF, PRB. Plot production in gallons against temp over time, say last 50 years. Plot graphs looking for required direct or inverse relationships and/or do correlations if you know how. Absolute and Relative Change This idea is easy to look for and to overlook. Economic change is rarely a +/- <> = game in an absolute sense. That is, the data we use and the comparisons we make rarely present themselves as absolute increases and decline, positives, negatives, and equalities. Most times you are dealing with relative and not absolute change. Absolute and Relative Change Consider the following scenario for employment change in two regions. It is clear that one is growing and one is declining in absolute terms. Region A Percent Employment Change Region B is declining in absolute terms. Region B Time Absolute and Relative Change Now consider this scenario, where it is much less clear what is happening. Both regions are growing, but region A has higher growth relative to Region B. From an economic point of view, Region B can be said to be declining in relation to region A. Region A Percent Employment Change Region B Region B is declining in relative terms. Time Absolute and Relative Change In this scenario it is region A that is declining relative to Region B. From an economic point of view, Region A can be said to be declining in relation to region B, even though both are growing. Region A Percent Employment Change Now region A is declining in relative terms. Time Region B Absolute and Relative Change In this scenario it is region A that is ‘growing’ relative to Region B. From an economic point of view, Region A can be said to be growing in relation to region B, even though both are declining. Region A Percent Employment Change Now region A is increasing in relative terms. Region B Time Absolute and Relative Change In this scenario region B shows an ‘inflection point’ where its profile changes from relative decline to relative growth in relation to region A. Region A Percent Employment Change Region B Region B is declining then increasing in relative terms. Inflection point Time Absolute and Relative Change The point of these simple examples is to illustrate that the idea of relative and absolute change need to be considered when analysing spatial economic data. The same can be said for the idea of rates of change versus levels of change. A rate of change is a mathematical measure of change in a variable’s value over time. A level of change is a mathematical measure of a variable’s value attained at a given point in time. While this may seem pedantic, it is important for the same reasons that absolute and relative change is. Rates Versus Levels of Change In this scenario region B has attained the same level of change (in this case growth) as region A, but has done so much faster. Subsequently, region B may suffer from problems associated with such a rapid pace of growth (e.g. supply issues, labour shortages, pollution) that region A did not suffer. This is typical of rapidly developing economies. Region A’s Periodicity Region B’s Periodicity Level of change Percent Employment Change Region A Region B Time Speed of Decision making: The complexities of making decisions are further complicated by the increasing speed at which such decisions have to be made and reacted to. Before 1970, financial and corporate decisions rarely occurred in much shorter intervals than quarterly and most about annually. After 1970 corporate decisions have to be made almost weekly, and some pertinent data, such as the exchange rates that govern the price of exports are being made several times a day. Currently, virtually all financial decision making takes place several times a day. Speed of Decision Making: Which rate of change is more sustainable? Which will have the lower impact? Which will be controllable? CHANGE Which is us? TIME This is a test. Assume that you are asked to cut the price of a $100 dress by 25%, then raise the price by 25%. How much would the dress now cost? If you said $100, don’t go shopping for dresses. If you said $93.75 you can probably make some money off the other person. This is what it looks like: $100 – 25% = $75 $75 + 25% = $93.75 Moral: even calculating percentages can be tricky. …Or How to Pick Your Truth Consider the following: The city increases the your property tax rate from 3% to 5%. So by how much did it increase? The answer is: by how much would you like it to have increased? This is not a trick question, but there is a trick to picking which truth makes your case sound better – and the “other” person’s sound worse. A Tale of Two Percent If you are the city: “We only increased the property tax by 2%.” (The absolute difference between 5% and 7%). If you are the tax payer association: “The government increased our property tax by 67%!” (The percentage change between 5 and 7). If you are a homeowner, which would you think is the most accurate interpretation because they are both correct? Have you heard this one? Boss walks into your office and says: “I’m giving everyone in the company a 10% pay raise!” Your response is: a. “Wow! Thanks! That’s an extra $8,000 a year! I’m so grateful!” b. “What? You’re kidding right? Thanks a lot. I get $8K and you get $80K.” Or this one? Toronto growth rate, 2006-2011 = 8.5% Ho-hum. Stouffville growth rate, 2006-2011 = 100.5% Holy Cow! Stouffville’s growth rate is almost 12 times that of Toronto! Stouffville growth rate, 2006-2011 = 12,475 people. Ho-hum. Toronto growth rate, 2006-2011 = 400,433 people. Holy Cow! Toronto’s growth rate is over 32 times that of Stouffville! Growth or Not And By How Much? The answer is not 12%. First there is the effect of inflation/deflation. Second, there is the effect of population change. Third, there are also issues about comparability of: the variables/units: apples or oranges? litres or kilos? dollars or yen? differences or magnitudes? time scales? Fourth, there are components to a growth value. Start with a Simple Question Should you measure prosperity in income or wages? Huh? Has income increased? Yes, by steadily larger increments for wealthier people. All the trend lines are going up. Highest Lowest Let’s try again. Has income increased? Yes for sure. Growth rates have all gone up, much more for more for rich people for sure. The Question Once Again Then… … But this time we’ll ask the question slightly differently: Has income increased if its measured with wages? The subtlety here is that income measures what the household brings in regardless of the number of hours needed to do so. Wages measures how many hours you need to work to earn that income. So your income can go up but if the number of hours needed to earn it goes up as well then how much better off are you? U.S. Male Hourly Wage 1979-2009 Wages have not increased for lower income groups while they have quite considerably for upper income groups. On Being Subtle and Sophisticated Statistics is about extracting information from data. But you have to be able to get the right information. Even simple data such as percentage change can hide nuances in the information it is apparently giving you. When you calculate a 40% change between two periods of time, you cannot ever take it for granted that you actually had a 40% growth rate. Is the magnitude really 40%? What is hidden inside the value? Can a large positive growth rate actually be a small negative one (strange but true)? An Illustration –The Canadian Economy Look at the numbers - Two Questions: Is consumer spending growing faster than GDP? Are consumer spending and GDP really growing at all? Growth rate: 40.9% Date 2002 2003 2004 2005 2006 2007 2008 2009 2010 GDP $1,152,905,000,000 $1,213,175,000,000 $1,290,906,000,000 $1,373,845,000,000 $1,450,405,000,000 $1,529,589,000,000 $1,603,418,000,000 $1,528,985,000,000 $1,624,608,000,000 The Answer? Maybe, because Consumer Spending the values are $655,722,000,000 increasing: $686,552,000,000 GDP grew by $719,917,000,000 @41% and CS by $758,966,000,000 @43%. $801,742,000,000 Growth rate: 43.5% $851,603,000,000 $890,601,000,000 $898,215,000,000 $940,620,000,000 But looks can be deceiving for three reasons… Growth or Not And By How Much? REASON #1: UNITS Are the variables and/or units of measurement comparable? This asks whether you are talking about: • • • • • Different things such as guns and butter. Different magnitudes such as GDP$ or spending$. Different measurement units such as annual or quarterly, litres or kilos, totals or per capita. Different base lines such as percentage points difference or percentage change difference. Different sized economies. You fix it by indexing your data. Growth or Not And By How Much? REASON #2: IN/DEFLATION Removing the effect of inflation/deflation. Inflation and deflation is caused when the costs and therefore subsequent prices of products increase or decrease, so any “growth/decline” is not caused by more/less consumption but by increased/decreased price. You fix it by converting current dollars to constant dollars using the consumer/producer price indices and purchasing power parity. A Note on Terms Used Economists use the term “nominal” for values that have not been corrected for inflation and “real” for those that have. However, most of the documents you see use the terms “current” for non-corrected values and “constant” for corrected values. Growth or Not And By How Much? REASON #3: POPULATION Compensating for the effect of population change. More people equals an increase in consumption and production and not an increase in individual spending and production. Compensating for the effect of population size. Bigger places/nations have more people (duh) so comparing absolute values is mostly pointless. You fix both by using per capita rates. So, back to our example… Look at the numbers - Two Questions: Is consumer spending growing faster than GDP? Are consumer spending and GDP really growing at all? Date 2002 2003 2004 2005 2006 2007 2008 2009 2010 GDP Consumer Spending $1,152,905,000,000 $655,722,000,000 $1,213,175,000,000 $686,552,000,000 $1,290,906,000,000 $719,917,000,000 $1,373,845,000,000 $758,966,000,000 $1,450,405,000,000 $801,742,000,000 $1,529,589,000,000 $851,603,000,000 $1,603,418,000,000 $890,601,000,000 $1,528,985,000,000 $898,215,000,000 $1,624,608,000,000 $940,620,000,000 The Answer? Maybe, because the values are increasing – GDP grew by 40% and CS by 43%. But looks can be deceiving for two reasons… Are the values comparable? Date 2002 2003 2004 2005 2006 2007 2008 2009 2010 Current Current Dollar Dollar Consumer GDP Spending Index # Index # 2002=100 2002=100 100.00 100.00 105.23 104.70 111.97 109.79 119.16 115.75 125.80 122.27 132.67 129.87 139.08 135.82 132.62 136.98 140.91 143.45 No. The magnitudes of values are much different – billions versus trillions. Usually a problem when comparing different countries, cities of different sizes. How to fix it? Create a base 100 index number: 1.Make an arbitrary year’s real data value equal to 100. 2. Calculate every other year’s index number in relation to this base year value (% change). Now both sets of data values are directly comparable because they are relative. Removing the effects of inflation and population change/size. 2002 2003 2004 2005 2006 2007 2008 2009 2010 Consumer Price Index 2002 = 100 100.0 102.8 104.7 107.0 109.1 111.5 114.1 114.4 116.5 Canada Population 31,373,000 31,676,000 32,048,000 32,359,000 32,723,000 33,115,000 33,506,000 33,894,000 34,349,200 1. Collect the consumer price index (CPI) values. 2. Collect population data. 3. Use CPI to convert current to constant dollars for both variables. 4. Use population values to calculate per capita spending and GDP thus… Current to Constant Dollar Conversion Current dollars are not corrected for inflation so part of the change over time in values does not come from growth, so you need to find or calculate constant dollar values. To remove effect of inflation: Current 2003 GDP = $1,213,175,000,000 CPI (2002=100) = 102.8 Formula: Constant 2002$ = Current $/(CPI/100) Calculated: Current 2003 GDP $ = $1,213,175,000,000/(102.8/100) = Constant 2003 GDP $ = $1,180,131,322,957.20 Removing the effect of inflation from GDP Date 2002 2003 2004 2005 2006 2007 2008 2009 2010 GDP Current Dollars $1,152,905,000,000.00 $1,213,175,000,000.00 $1,290,906,000,000.00 $1,373,845,000,000.00 $1,450,405,000,000.00 $1,529,589,000,000.00 $1,603,418,000,000.00 $1,528,985,000,000.00 $1,624,608,000,000.00 GDP Constant 2002 Base year Dollars values are $1,152,905,000,000.00 always the $1,180,131,322,957.20 same for $1,232,957,020,057.31 current and $1,283,967,289,719.63 constant $1,329,427,131,072.41 dollars. $1,371,828,699,551.57 That’s how $1,405,274,320,771.25 you can tell $1,336,525,349,650.35 the base $1,394,513,304,721.03 year. Note that when removing inflation the constant dollar values are always lower than the current dollar values. When (rarely) removing deflation they are always higher. Removing the effect of inflation from consumer spending Date 2002 2003 2004 2005 2006 2007 2008 2009 2010 Consumer Spending Current Dollars $655,722,000,000.00 $686,552,000,000.00 $719,917,000,000.00 $758,966,000,000.00 $801,742,000,000.00 $851,603,000,000.00 $890,601,000,000.00 $898,215,000,000.00 $940,620,000,000.00 Consumer Spending Constant 2002 Dollars $655,722,000,000.00 $667,852,140,077.82 $687,599,808,978.03 $709,314,018,691.59 $734,868,927,589.37 $763,769,506,726.46 $780,544,259,421.56 $785,152,972,027.97 $807,399,141,630.90 Base year Values are always the same for current and constant dollars. That’s how you can tell the base year. Note that when removing inflation the constant dollar values are always lower than the current dollar values. When (rarely) removing deflation they are always higher. Compensating for the effect of population change/size CURRENT DOLLARS 2002 2003 2004 2005 2006 2007 2008 2009 2010 Per Capita GDP Current Dollars $36,748.32 $38,299.50 $40,280.39 $42,456.35 $44,323.72 $46,190.22 $47,854.65 $45,110.79 $47,296.82 CONSTANT DOLLARS Per Capita Consumer Per Capita GDP Spending Constant 2002 Current Dollars Dollars $36,748.32 $20,900.84 $37,256.32 $21,674.20 $38,472.20 $22,463.71 $39,678.83 $23,454.56 $40,626.69 $24,500.87 $41,426.20 $25,716.53 $41,940.98 $26,580.34 $39,432.51 $26,500.71 $27,384.04 $40,598.13 Per Capita Consumer Spending Constant 2002 Dollars $20,900.84 $21,083.85 Base $21,455.31 $21,920.15 Years $22,457.26Same $23,064.16 $23,295.66 $23,164.95 $23,505.62 Note that when correcting for inflation the constant dollar values are always lower than the current dollar values. When (rarely) correcting for deflation they are always higher. Correcting The Canadian Economy in Summary What You See Data uncorrected for… Population growth/difference… Use population to correct. Per capita values Inflation… Use CPI to correct. in constant dollars What You Get Data corrected for both… So did the Canadian Economy ‘grow’ and if so by how much? Growth Correction No correction (current dollars) Corrected for inflation only (constant dollars) Corrected for population change only (per capita rates) Corrected for both (Constant per capita) Difference GDP Growth Rate Consumer Spending Growth Rate 40.9% 43.5% 21.0% 23.1% 28.7% 31.0% 10.5% 12.5% -30.4% -31.0% An Illustration –The Canadian Economy Two Questions 1. Is consumer spending growing faster than GDP? 2. Are consumer spending and GDP really growing at all? Date 2002 2003 2004 2005 2006 2007 2008 2009 2010 GDP Current Dollars $1,152,905,000,000.00 Raw Percent Change $1,213,175,000,000.00 2002-10 $1,290,906,000,000.00 40.9% $1,373,845,000,000.00 $1,450,405,000,000.00 Real Percent Change $1,529,589,000,000.00 2002-10 $1,603,418,000,000.00 10.5% $1,528,985,000,000.00 $1,624,608,000,000.00 Consumer Spending Current Dollars $655,722,000,000.00 Raw Percent Change $686,552,000,000.00 2002-10 $719,917,000,000.00 43.5% $758,966,000,000.00 $801,742,000,000.00 Real Percent Change $851,603,000,000.00 2002-10 $890,601,000,000.00 12.5% $898,215,000,000.00 $940,620,000,000.00 Two Answers 1. Can’t tell from these raw data. 2. Maybe, because the numbers are increasing. But looks can be deceiving. Measuring Performance in an Economy Productivity Capacity Utilization Input-Output Productivity Indices Measures the efficiency with which economy’s labour and capital are being used to produce output using three basic measures: Output Per Person Hour Output/number of hours worked to produce it Compensation Per Person Hour Output/wages paid to produce it Unit Labour Cost Wages/Output OR Compensation Per Person Hour/Output Per Person Hour) A Word on Unit Value You see this a lot and it is a very useful concept. Generally refers to how much you get for how much you give. E.Gs. Unit revenue = Total revenues/number of units sold Unit cost = Total cost/number of units produced And from these… Unit profit = unit revenues/unit costs Unit Labour Cost most used in estimating productivity Marginality is a unit value: How much extra output you got for the last unit of input. Calculating Productivity Indices VARIABLES USED TO CALCULATE INDICES Output in Value Added Person Hours Worked VALUES 2012 $1,558,077,367 30,541,021 Wages Paid PRODUCTIVITY INDICES Output Per Person Hour $972,179,228 Compensation Per Person Hour Unit Labour Cost $31.83 $0.62 $51.00 Interpretation: In 2012 Canadian workers: Produced $51.00 for every hour they worked, Got paid about $ 31.83 for every hour they worked, and so… Their labour accounted for .62 cents of each dollar of production. Source: Statistics Canada. CANSIM Table383-0029 Canada, Productivity Indices 1981 to 2014 Index Number (2007 = 100) 115.0 105.0 95.0 85.0 75.0 65.0 55.0 But average hours are decreasing, which means workers are being replaced by capital. Yet ULC are still increasing meaning the labour that’s left is expensive – as seen in compensation per hour. When Unit Labour Cost increases it means that compensation is increasing faster than productivity. 45.0 Unit Labour Cost Average Hours Worked Year 2013 2011 2009 2007 2005 2003 2001 1999 1997 1995 1993 1991 1989 1987 1985 1983 1981 35.0 Total Number of Jobs Compensation Per Hour Worked Statistics Canada. Table 383-0008 - Indexes of labour productivity, unit labour cost and related variables, seasonally adjusted, quarterly (index, 2007=100), CANSIM (database). (accessed: ) Capacity Utilisation Rates Compares what you do produce against what you could have produced. High CUR indicates that an industry is approaching capacity and is an indicator of inflation. Low CUR indicates that unit costs of production are higher than they should be. Simple to understand but difficult to measure. Two basic methods - both try to set an ideal upper limit and then compare actual production against it. The two methods are: The Wharton Trend Through Peaks StatsCan Capital Output Ratio The Wharton Trend Through Peaks Approach This method attempts to set the ideal upper limit by setting a trend line through the peaks of actual production for a given period of time, and then measuring divergence from this ideal line: Seasonally Adjusted Quarterly Index of Production Actual Production Output Capacity Utilisation rate (expressed as a percentage, actual of trend) 1 2 3 4 1 2010 2011 Quarters 2 3 The Stats Canada Capital Output Ratio. Potential output is estimated by relating capital's ability to produce at its maximum, to the existing stock of capital. That is, how much capital is available and how much output should you expect from it, expressed as a percentage of what it does produce. What you should expect from a given unit of capital (i.e. its ability to produce) is reflected in a number called the capitaloutput ratio. The minimum capital-output ratio represents what you can do in terms of productive capacity, and hence represents the maximum potential output. It’s asking “how little do I need and how much can I get.” Calculation of the Stats Canada Capital Output Ratio. 1. Collect data on production output (Pt) and capital stocks (Kt) for each quarter from Statistics Canada (StatsCan uses the industry's proportion of Gross Domestic Product and the Capital Stocks Series). 2. Calculate capital-output ratios for each quarter as per the model below (Kt/Pt). 3. Select the minimum capital-output ratio for the series to date as the ideal capital-output ratio (Ko/Po). 4. Calculate the potential output (CPt) that the period's capital stock should produce by dividing the capital stock (Kt) by the ideal capital-output ratio (Ko/Po). 5. To get the CUR for the period (CURt), express the actual output (Pt) as a percent of the potential output (CPt). The Stats Canada Capital Output Ratio. The full model is: CURt = (Pt/CPt) * 100 where, Yes, It’s complicated. CPt it = Kt/(Ko/Po) But StatsCan does all for you – to a point. where, Kt: fixed capital stocks at time `t'. Pt: actual output at time `t'. Kt/Pt: capital-output ratio at time `t'. Ko/Po: minimum capacity-output ratio. CPt: estimated capacity output at time `t'. CURt: capacity utilisation rate at time `t'. Examples of Stats Canada Capacity Utilization Rates (CURt). Source: CANSIM table: 028-0002. Total non-farm Construction t 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 MEAN Total Manufacturing CUR percent 85.7 86.6 85.0 82.2 78.9 78.8 80.6 83.0 82.1 82.0 83.6 84.6 86.0 87.0 84.3 85.4 84.2 84.9 84.2 82.8 82.4 77.5 71.4 76.0 82.5 92.6 93.6 94.5 91.1 83.6 78.8 76.3 78.8 75.8 78.5 83.1 84.7 86.8 88.7 90.5 89.8 88.0 86.1 83.5 81.7 80.3 79.0 70.0 74.0 83.7 Mostly you want high ratios. 82.8 82.6 81.2 78.2 74.2 76.4 79.9 83.5 83.9 82.8 83.6 84.3 85.8 86.0 81.7 82.9 81.5 83.5 83.7 82.7 82.8 75.6 70.9 76.2 81.1 Capacity Utilisation Rates, Canada, 1987-2010 100.0 But even more mostly you want them to stay high over time. 95.0 90.0 85.0 80.0 75.0 70.0 And, oh! Canada’s have not 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 65.0 Total Non-farm Construction Manufacturing Linear (Total Non-farm) Linear (Construction) Linear (Manufacturing) http://www.statcan.gc.ca/pub/11-210-x/2010000/tablelist-listetableaux5-eng.htm Input Output Analysis This is a very complex method of analysing the throughput of commodities in an economy. It is designed to estimate how much of the output of a given commodity is the input of every other commodity, including itself. There are various methods for generating results but the end result is an input-output matrix that shows proportionately where that commodity’s output is going. An I-O matrix allows for estimation of the impact on any given economic activity from changes in any other activity, and so is a very powerful economic tool. ECONOMIC ACTIVITIES How Input Output Matrices Work ECONOMIC ACTIVITIES (e.g. lumber) 2 (e.g. paper) 3 … … 2 (e.g. lumber) (e.g. paper) Lumber Lumber gets gives to from lumber lumber Paper Lumber gets gives to from paper lumber 3 … … … n NOTE: Every cell value is both an input and an output, depending how you read it. Columns represent what each activity Rows represent what each receives from every activity supplies to every other activity. other activity. Therefore Therefore columns rows represent the outputs represent inputs to from activities 1, 2, 3, n. activities 1, 2, 3, n. n TOTAL Column totals represent the total inputs to activities 1, 2, 3, n. TOTAL Row totals represent the total outputs from activities 1, 2, 3, n. 1 1 Examples of Input Output Analysis SCOTTISH NATIONAL INPUT OUTPUT MATRIX (All in £ millions) Purchases by product group from 1 2.1 2.2 3.1 3.2 4 5 product group Sales by product Coal Forestry Forestry Sea Fish Oil & gas group to product Agriculture extraction planting harvesting fishing farming extraction group etc Agriculture 164.7 6.5 Forestry planting 0.2 76.4 Forestry harvesting 0.0 Sea fishing 0.0 Fish farming 0.0 10.7 Coal extraction etc 0.2 10.2 Oil & gas extraction 0.0 46.3 Agriculture sold £164.5 million worth of goods to agriculture. Agriculture sold £6.5 million worth of goods to forestry planting. Agriculture bought £164.5 million worth of goods from agriculture. Forestry planting bought £6.5 million worth of goods from agriculture. Finally: Go look through the following classifications, methods, data slide show for ideas on analysis. Going to look at: • Economic activities classification systems. • Data and sources. • Methods of economic analysis. Here we are talking about: • The North American Industrial Classification System or NAICS (and SIC). • Statistics Canada and other more global sources. • Methods (especially indices) & variables commonly used. Classification systems (E.G. NAICS (and SIC), StatsCan) • • • • Attempt to group similar activities. Attempt to separate dissimilar activities. Be as comprehensive as possible. Be as consistent as possible (sectorally, spatially, temporally). Because classifications are by definition static and activities are not, they always become out-dated and must be changed. Different systems exist for: • Economic activities. • Occupations. • Products. • Commodities. The NAICS and the SIC: • SIC developed starting after WW2 with the GATT. • NAICS evolved from this with the NAFTA. • Both are structured hierarchical typologies that group economic activities: • into Divisions, • divisions into Major Group, • major groups into Industry Group, • industry groups into Industry Classes. • All groupings are based on similarity between hierarchical levels; that is, like activities are grouped together into increasingly larger classes. • But as they get larger, they get more dissimilar! SIC: Standard Industrial Classification System: • Now obsolete but old datasets still have SIC “codes” and not NAICS codes. • Structure is similar to NAICS however, as we will see shortly. • Uses divisions, major groups, industry groups, industry classes. • Divisions have a letter code, and each of the others its own digit or digits in a four digit number code. NAICS: the North American Industrial Classification System: • “New” system started in 1997 and updated 3 times since, with 2012 the latest. • Developed to ensure consistent classes of activities between NAFTA nations – but U.S. and Mexico’s are slightly different! • Uses sectors, sub-sectors, industry group, industry, national industry, each having its own digit in up to a six digit code. Sectors Primary Primary Tertiary Tertiary Secondary Tertiary Tertiary Tertiary Quaternary Quaternary NAICS 2012 CLASSIFICATION STRUCTURE – SECTORS http://www.statcan.gc.ca/cgi-bin/imdb/p3VD.pl?Function=getVDPage1&db=imdb&dis=2&adm=8&TVD=118464 11 Agriculture, forestry, fishing and hunting 21 Mining, quarrying, and oil and gas extraction 22 Utilities 23 Construction 31- 33 Manufacturing 41 Wholesale trade 44-45 Retail trade 48-49 Transportation and warehousing 51 Information and cultural industries 52 Finance and insurance 53 Real estate and rental and leasing 54 Professional, scientific and technical services 55 Management of companies and enterprises 56 Administrative and support, waste management and remediation services 61 Educational services 62 Health care and social assistance 71 Arts, entertainment and recreation 72 Accommodation and food services 81 Other services (except public administration) 91 Public administration Industry Group 31-33 Manufacturing NAICS: 312 Beverage and Tobacco Product Manufacturing The Manufacturing Sector‘s 21 Classes 31-33 Manufacturing 311 Food Manufacturing 313 Textile Mills 314 Textile Product Mills 311 Food Manufacturing 315 Clothing Manufacturing 312 Beverage and Tobacco Product Manufacturing 316 Leather and Allied Product Manufacturing 321 Wood Product Manufacturing 322 Paper Manufacturing 313 Textile Mills 323 Printing and Related Support Activities 314 Textile Product Mills 324 Petroleum and Coal Products Manufacturing 325 Chemical Manufacturing 315 Clothing Manufacturing 326 Plastics and Rubber Products Manufacturing 327 Non-Metallic Mineral Product Manufacturing 331 Primary Metal Manufacturing 316 Leather and Allied Product Manufacturing 332 Fabricated Metal Product Manufacturing 333 Machinery Manufacturing 334 Computer and Electronic Product Manufacturing 335 Electrical Equipment, Appliance and Component Manufacturing 336 Transportation Equipment Manufacturing 337 Furniture and Related Product Manufacturing 339 Miscellaneous Manufacturing 31-33 Manufacturing 311 Food Manufacturing 31-33 ManufacturingNAICS 312 Beverage and Tobacco Product Manufacturing Code Hierarchy for 311 Food Manufacturing Textile Mills 313 Textile Mills Six Digits and TobaccotoProduct Manufacturing 3131 Fibre, Yarn312 andBeverage Thread Mills 313 Textile Mills 314 Textile Product Mills 315 Clothing Manufacturing 316 Leather and Allied Product Manufacturing 321 Wood Product Manufacturing 31311 Fibre, Yarn and Thread Mills 313 Textile Mills 323 Printing and Related313110 Support ActivitiesFibre, Yarn and Thread Mills 324 Petroleum and Coal Products Manufacturing 314 Textile Product Mills 3132 Fabric Mills 325 Chemical Manufacturing 31321 Broad-Woven Fabric Mills 326 Plastics and Rubber Products Manufacturing 315 Clothing Manufacturing Broad-Woven Fabric Mills 327 Non-Metallic Mineral313210 Product Manufacturing 331 Primary Metal Manufacturing 31322 Narrow Fabric Mills and Schiffli Machine Embroidery 316 Leather and Allied Product Manufacturing 332 Fabricated Metal Product Manufacturing 313220 Narrow Fabric Mills and Schiffli Machine Embroidery 333 Machinery Manufacturing 31323 Nonwoven Fabric Mills 334 Computer and Electronic Product Manufacturing 335 Electrical Equipment,313230 Appliance and Component Manufacturing Fabric Mills Nonwoven 336 Transportation Equipment Manufacturing 31324 Knit Fabric Mills 337 Furniture and Related Product Manufacturing 313240 Knit Fabric Mills 339 Miscellaneous Manufacturing 3133 Textile and Fabric Finishing and Fabric Coating 322 Paper Manufacturing Canadian statistical collection agency, greatly respected in the world and considerably important if you are interested in actually making objective, data based decisions (unfortunately politicians often are not). They produce the Census of Canada every five years, and about 350 other products ranging across all aspects of Canadian life. You should be intimately familiar with SC data, much of it being economic based. Spatial scales range from the national aggregate down to DAs (designated areas) – the smallest areas for which data is collected. Index Numbers Index Numbers and Ratios One of the most common types of quantitative tools, seen in many types of geographic data. Examples are Consumer Price Index, stock indices such as TSX, NASDAQ, Location Quotients, Gini coefficients, demographic analyses such as birth and death rates, etc. Just about any data can be converted to indices or ratios. Allows for comparison of datasets and/or growth rates between different datasets. Index Numbers – Some Examples Consumer Price Index: Agency ‘purchases’ a ‘shopping cart’ of goods and services, then uses the cost of them as a base for measuring increases in prices of the same shopping cart at other times. Stock Indices (TSX, NASDAQ, etc): Same as CPI – a ‘portfolio’ of stocks are valued at one point in time, then re-valued and compared at other points in time. Big Mac Index: Developed by The Economist magazine, this tongue in cheek but surprisingly accurate index compares the Purchasing Power Parity of currencies in one nation to another – I.E. are they over-valued. Ceridian-UCLA Pulse of Commerce Index: Monitors the purchase of diesel fuel by truckers using credit and debit card swipes, as an indicator of the flow of raw materials, finished and semi finished products. How its done – stock indices 1. Pick a selection of stocks (the Dow has 30, the TSX Composite has 100). 2. Add up their values, then either use that raw value or ‘weight’ by some measure or convert to a base 100 index. 3. Compare the resulting index with recalculations across time (rarely done, hence TSX, Dow, Hang Seng index numbers of 12,000+). Stock indices can be based on value of the stocks or market capitalization or growth etc. They measure general trend of the markets or specialized stocks such as the NASDAQ tech stocks. What the Dow(s) looks like. What the S&P(s) looks like. What it looks like plotted Note the “dot.com” spike around 2000 as recorded by the NASDAQ. Also note that S&P500 is more heavily weighted with tech stocks. The Big Mac Index 1. Divide the price of a Big Mac in one country by the price in another (create the index number). 2. Compare that index number with the exchange rate between theU.S. two countries. Argentina 3. If it is lower then the currency of the first country is undervalued compared to the second; if it is Australia higher, then it is overvalued. Brazil U.K. (underpriced currency) Canada (overpriced currency) Grey line actual. Blue line MA3 (moving average period 3. Index created from truckers’ purchases of diesel fuel; used as an indicator of commerce and hence health of the economy. Simple Index Numbers Very simple to calculate by taking the base year value, chosen arbitrarily, dividing it into each subsequent year’s value, then multiplying by 100. Date 2002 2003 2004 2005 GDP $1,152,905,000,000 $1,213,175,000,000 $1,290,906,000,000 $1,373,845,000,000 Index 100.00 105.23 111.97 119.16 $1,213,175,000,000.00/$1,152,905,000,000 = 105.23 $1,290,906,000,000.00/$1,152,905,000,000 = 111.97 NOTE THAT THIS IS JUST A PERCENTAGE CHANGE VALUE ADDED TO 100 The Consumer Price Index • What is the CPI? • Basket of goods and services are “bought” and their cost is set to equal an index number of 100. • The year the basket is “bought” is called the base year, and it remains until a new base year is chosen. • The same basket is “bought” the next year and its value is given an index # equal to 100 plus the percentage change from the previous year’s basket. • This process is repeated each year (or other time period) until a new base year is chosen. • The CPI is listed in a table and the base year is noted somewhere as, for example, 2002=100. Therefore you do not calculate the CPI – you must look it up from Stats Canada Examples of Price Indices • Data tables for Prices and price indexes – some SC examples: • • • • • • • • • • • • Table 25.a Consumer Price Index Table 25.b Average retail food prices Table 25.1 Consumer Price Index, 1991 to 2010 Table 25.2 Consumer Price Index, All-items, by province and territory, 2005 to 2010 Table 25.3 Consumer Price Index, food, 2004 to 2010 Table 25.4 New Housing Price Index, by province, 2004 to 2010 Table 25.5 Raw Materials Price Index, 2004 to 2010 Table 25.6 Farm Product Price Index, 2004 to 2010 Table 25.7 Industrial Product Price Index, 1991 to 2010 Table 25.8 Machinery and Equipment Price Index, domestic and imported, by industry, 2005 to 2010 Table 25.9 Composite Leading Index, March 2005 to March 2011 Table 25.10 Inter-city indexes of retail price differentials, by selected goods and services, 2005 and 2009 The CPI – Example Tables Table 25.a Consumer Price Index All-items Food Shelter 2000 2010 2002=100 95.4 116.5 93.3 123.1 95.6 123.3 Household operations, furnishings and equipment 96.7 108.8 Clothing and footwear Transportation Health and personal care 100.3 97.2 97.0 91.6 118.0 115.1 Recreation, education and reading 97.0 104.0 Alcoholic beverages and tobacco products 79.0 133.1 Core Consumer Price Index1 95.7 115.6 Note: Annual average indexes are obtained by averaging the indexes for the 12 months of the calendar year. 1. Bank of Canada definition. Source: Statistics Canada, CANSIM table 326-0021. Farm Product Price Indices – Example Tables Canada Total crops Grains Oilseeds Specialty crops Fruit Table 25.6 Farm Product Price Index, 2004 to 2010 2004 2005 2006 2007 1997=100 99.4 96.8 97.4 108.6 100.6 88.3 92.7 117.5 94.1 76.5 84.3 133.3 95.2 74.5 72.2 97.5 102.5 85.2 80.2 120.6 108.7 117.4 124.6 124.4 2008 2009 2010 122.0 144.9 168.3 133.5 185.9 126.3 113.5 126.3 128.5 116.5 158.6 112.5 111.0 114.8 102.5 113.1 137.9 118.3 Vegetables (excluding potatoes) 116.8 113.1 118.2 114.3 119.3 125.3 124.1 Potatoes 119.4 125.9 148.6 135.0 150.7 183.2 175.9 Total livestock and animal products 98.3 103.9 101.3 101.5 103.5 103.6 109.2 Cattle and calves 87.6 103.2 102.7 99.4 99.0 97.7 103.0 Hogs Poultry Eggs Dairy 89.7 97.9 105.6 119.9 83.0 96.4 97.3 128.0 72.3 93.2 98.7 130.3 68.3 102.2 100.8 137.2 67.3 115.0 107.9 139.9 67.5 116.6 103.4 142.4 80.4 111.8 109.0 143.3 The CPI and Purchasing Power Parity (PPP) CPI only one part of cost of living – some places are just more expensive to live in. When values are corrected for the cost of living in different places the resulting data is labeled as PPP. This means Purchasing Power Parity – that is, dollar values are corrected for the differences in the cost of things like food, housing, taxes, gasoline, etc. In this case the same basket of goods is valued in each place, compared, then indexed, and the resulting indexed values are used to inflate or deflate prices, incomes, GDP, etc. Inter City CPI PPP – Example Tables Vancouver Edmonton Winnipeg Toronto Montréal St. John's Charlottetown & Summerside Table 25.10 Inter-city indexes of retail price differentials, by selected goods and services, 2005 and 2009 2005 2009 2005 2009 2005 2009 2005 2009 2005 2009 2005 2009 2005 2009 combined city average=100 All-items 94 97 93 95 110 107 92 Food 103 105 100 103 97 102 101 99 98 101 101 100 106 105 Food purchased from stores 105 104 103 103 99 101 99 99 99 103 101 102 106 106 Meat, poultry and fish 101 103 108 102 103 99 97 99 93 96 99 103 106 108 101 94 101 91 100 96 106 107 101 106 Dairy products and eggs 95 96 105 102 99 93 94 97 102 102 101 Current and Constant Dollar$ Current to Constant Dollar Conversion Current dollars are not corrected for inflation so part of the change over time in values does not come from growth. To remove effect of inflation: Current 2003 GDP = $1,213,175,000,000 CPI (2002=100) = 102.8 Formula: Constant 2002$ = Current $/(CPI/100) Calculated: Current 2003 GDP $ = $1,213,175,000,000/(102.8/100) = Constant 2003 GDP $ = $1,180,131,322,957.20 RATIOS Definition: Basically, one number divided by another number. Many Types – simple to complex: Per capita rates. Many demographic stats such as birth and death rates. Location Quotients (a ratio of ratios). Gini coefficients (complex – an index number measuring inequalities). Simple Ratios The ‘Per’ Rates Demographic Per Rates Incorporates the effect of population size. Gives comparable and understandable values. Easy to calculate – divide variable of interest (e.g. births) by the population and multiply by the base value – ‘per 1,000’ Base values vary according to the expected magnitude of the final ratio. For example, you generally try to get a ratio between 1 and 100. Birth, death, fertility, infant mortality rates are usually expressed as a value per 1,000 whereas disease incidence rates would be per 10,000 or 100,000. Demographic Rates – Some Examples: Birth rates: BR = # (births/population)*1,000 381,382/34,108,800=0.0112 BR = (381,382/34,108,800)*1,000 BR = 11.2 births per 1,000 population Infant mortality rates: IM = (# deaths <= 1 year olds/population)*1,000 IM = (160,311/34,108,800)*1,000 IM = 4.7 infant deaths per 1,000 population Morbidity (disease death) rates – all cancers: MR = (# cancer deaths/population)*100,000 MR = (75,000/34,108,800)*100,000 MR = 2.2 cancer deaths per 100,000 population Complex Ratios Ratio of Ratios Approach Components Approach Ratio of Ratios Example Location Quotients (LQ) Location Quotients A method of estimating whether a region has a surplus, deficit or the average employment in an industry. Given by: LQ = Employment in industry i in region j Total employment in region j Employment in industry I in the nation J Total employment in the nation J Sometimes given as: LQ = (Eij/Ej)/(EIJ/EJ) Where i and j represent “industry” and “area” respectively, with lower case referring to the region in question and upper case referring to, usually, the nation. Location Quotients You should be able to see that this is a ratio of ratios thus: Employment in industry i in region Total employment in region j Employment in industry I in the nation Total employment in the nation J Ratio of regional employment in i to total regional employment j Ratio of national employment in I to total national employment J The resulting ratio is interpreted as follows: > 1.0: surplus national average production In other words, is thetoactivity basic, non-basic, or neither? = 1.0: national average production Thus we equal have atotechnique that could be used for < 1.0: deficit to national average production measuring economic base. Using Location Quotients for Immigration Analysis Components Approach – An Example Shift-Share Analysis Shift Share Analysis A fairly simple but powerful tool for analyzing components of growth. Disaggregates a single overall growth rate in an industry into components of that growth rate, in order to isolate: - the region’s national growth component; - the region’s regional growth component; - the region’s industry growth component. The reasons for doing this, by way of example… Shift Share Analysis If a region (say the GTA) shows a growth rate in electronics manufacture as 12% for a given time period, the questions are: What portion- if any - of the 12% can be attributed to the fact that the nation was growing anyway? What portion- if any - of the 12% can be attributed to the fact that the GTA was growing anyway? What should the electronics industry have been growing by, given the national growth rate in the industry? GTA Growth in the Auto Industry 6% growth due to growth in the national economy. 12% Total Growth 3% growth due to growth in the GTA economy. 3% growth due to growth in the auto industry. A single growth value hides complexity. Shift Share Analysis The Basic Model: Gij = Nij + Mij + Dij where, Gij = total growth in industry `i' at place `j'. Nij = national growth component in industry `i' at place `j'. Mij = industry mix component in industry `i' at place `j'. Dij = regional growth component in industry `i' at place `j'. Shift Share Analysis - GTA Growth in the Auto Industry Nij Gij 12% Total Growth Mij Dij 6% growth due to growth in the national economy. 3% growth due to growth in the GTA economy. 3% growth due to growth in the auto industry. A single growth value hides complexity. Shift Share Analysis where, Nij = Eo * r Mij = Eo * (ri - r) Dij = Eo * (rij - ri) Note that you are removing the effect of national growth from industry growth and industry growth from regional industry growth. where, r, ri, rij, = (Et - Eo)/Eo where, Eo = employment in `i' at `j' at start of period Et = employment in `i' at `j' at end of period r = national growth rate, all employment ri = national growth rate in `i' rij = growth rate in `i' at `j' And in case you were wondering what it all looks like together… Gij = Nij+Mij+Dij Nij = [Eo*(Etr-Eo)/Eo] Mij = [(Etri-Eori)-(Etr-Eo)/Eo)] Dij = [(Etrij-Eoij)/Eoij)/(Etri-Eori)] Gij = [[Eo*(Etr-Eo)/Eo]]+[[(Etri-Eori)-(Etr-Eo)/Eo)]]+[[(Etrij-Eoij)/Eoij)/(Etri-Eori)]] Interpreting Shift Share Analysis NATIONAL INDUSTRY MIX COMPONENT Mij Growth Industry Declining Industry (+) (-) REGIONAL GROWTH RATE COMPONENT Dij Growth Region (+) Good. Your region Poor. Your region is growing in a is growing in a growth industry. declining industry. Decline Region (-) Poor. Your region Good. Your region is declining in a is declining in a growth industry. declining industry. Summing up. The next time you see a growth rate, think about it: Current of constant dollars? Units? Scale? Good growth or bad growth? Components of growth? Coefficients Approach – An Example The Gini Coefficient The Gini Coefficient The Gini coefficient is a widely used measure of the degree of inequality in a distribution. Gives a number between 0 and 1 where 0 is complete equality and 1 is complete inequality. Sometimes numbers are multiplied by 100 to give coefficients between 0 and 100. It is used most generally in describing income inequality in a population. Interpreting the Gini Coefficient A nation with a coefficient of 0 would mean everyone had exactly the same income. A nation with a Gini coefficient of 1 (or 100) would mean that one person had all the income. Sweden = 23, Namibia = 70.7, USA = 45, Canada = 31. Global Gini is 40. Global Gini Coefficient 2010