UCL DEPARTMENT OF STATISTICAL SCIENCE Courses in Statistical Science for Mathematics Undergraduates 2015/16 Who should use this document? This document provides a guide to courses offered by the Department of Statistical Science that can be taken by undergraduates from the Department of Mathematics who have successfully completed MATH7501 Probability and Statistics I. Because MATH7501 cannot be taken before the second term of year 2, Statistical Science courses are not available to Mathematics students until their third year at the earliest. This document is not intended for use by the following students: Students registered on either of the Mathematics and Statistical Science (MASS) programmes, for whom other arrangements are made. These students should refer to the separate Undergraduate Student Handbook and information published by the Department of Mathematics. Students registered in the Department of Mathematics on undergraduate affiliate programmes who are enrolled at UCL during the autumn term only. A separate handbook: Courses in Statistical Science for Undergraduates on Affiliate Programmes (Autumn Term Only) is provided for these students. Courses Available The courses are listed below; syllabuses are given at the end of the document. The courses are all 0.5 units. In most cases, prerequisites equivalent to those stated are acceptable. All courses except STAT3101 and STAT3102 are part of the BSc programmes offered to students in the Department of Statistical Science and the normal prerequisite courses (which are not those stated below) are from those programmes. Consequently, Mathematics students may have to do some preliminary reading for some courses (see footnotes 1 and 3 below). Year Course Code Course Title Term Prerequisite 3 STAT2002 1 MATH75011 3 or 4 3 or 4 3 or 4 3 or 4 3 or 4 3 or 4 STAT3003/M011 STAT3004/M009 STAT3005/M018 STAT3006/M017 STAT3020/M020 STAT3022/M022 2 2 2 1 2 2 3 or 4 3 or 4 4 4 STAT3101 STAT3102 STAT3001/M012 STAT3002/M010 Linear Models & the Analysis of Variance Forecasting Decision & Risk Factorial Experimentation Stochastic Methods in Finance I Stochastic Methods in Finance II Quantitative Modelling of Operational Risk & Insurance Analytics Probability & Statistics II Stochastic Processes Statistical Inference Stochastic Systems STAT3102 MATH7501 STAT2002 STAT31012 STAT3006 MATH7501 & STAT7001 MATH7501 MATH75013 STAT3101 STAT3102 1 1 2 1 1 STAT2002 requires students to do a small amount of preliminary reading and, during the course, requires students to be able to interpret output from the Minitab statistical software package which is not used in MATH7501. Students are given extra help on Minitab output in tutorials. 2 Alternatively, simultaneous attendance on STAT3101. 3 STAT3102 can be, and has been, taken by students without STAT3101 but this requires them to do some preliminary reading. The required material can be found in "Introduction to Probability Models" by S.M. Ross (Academic Press, 2007): Sections 2.5 (Jointly distributed random variables, pages 47-60), 2.6 (Moment generating functions, pages 64-70) and 3.1 to 3.5 (Conditional probability and expectation, pages 97-132). 1 Course STAT2002 is at Intermediate level. All of the courses with codes beginning STAT3### are at Advanced level. Courses with codes beginning STATM### are at Masters level and may only be taken by students in the final year of an MSci degree. Students requiring advice on preliminary reading should obtain it BEFORE they leave for the summer vacation at the end of the year preceding that in which they intend to take the course (see below for names of staff to approach for advice). Advice and registration For general advice and information about statistics courses and BEFORE registering for a course on Portico, Mathematics students MUST consult a member of the Statistical Science staff, who will determine whether they have the necessary academic prerequisites. The Department of Statistical Science is located on the first and second floors of 1-19 Torrington Place and the offices of the staff named below are all in this location. The registration procedure is as follows. During the first week of term 1, see: Date Time Staff Member Room Monday 28 September Tuesday 29 September Wednesday 30 September Thursday 1 October Friday 2 October 12:00 – 14:30 13:00 – 15:30 13:00 – 15:30 14:00 – 17:00 14:00 – 17:00 Dr Matina Rassias Dr Matina Rassias Dr Matina Rassias Dr Ricardo Silva Dr Ricardo Silva 140 140 140 139 139 Before and after the first week of term 1, see Dr Ricardo Silva (room 139) during his regular office hours (Mondays 11:00-12:00, Wednesdays 12:00-13:00 and Fridays 14:00-15:00). To register after this discussion, use the Portico system. Ensure that any course codes you select correspond exactly to those given in the above list. Registrations will NOT be approved unless they have been agreed with the Department beforehand. Also, for some courses the Department can only accommodate students up to a certain maximum number, and no further registrations will be approved once this maximum is reached. Teaching Arrangements The courses on offer consist of lectures supplemented by at least one of the following: tutorials, workshops, problem classes. Workshops are also referred to as "practical classes" in some departmental literature. The proportions of these activities vary between courses; details are provided in the next section. Monitoring attendance and progress Students' attendance at tutorials and workshops will be monitored. Unsatisfactory attendance at these classes or an unsatisfactory coursework record will be reported to a student's Departmental Tutor. An indication of the amount of set work for each course is provided in the final section of this document. You may be barred from taking examinations if you have not attended enough tutorials or submitted enough coursework, EVEN if it does not count towards the final course mark. 2 Timetable Course timetables are available from http://www.ucl.ac.uk/timetable, usually from midAugust onwards. After making your module selections on Portico, tutorial allocation for Statistical Science courses will be arranged by the Teaching Administrator before courses start and your tutorial group will automatically appear in your online timetable. However, it may take one or two days after registration has been approved before all of the classes appear on your personal timetable, particularly for tutorials. Check your timetable frequently, in case alterations have been made. Note also that, once allocated, your tutorial group will NOT be changed unless you can demonstrate a timetable clash. Teaching dates: Lectures and workshops for all Statistical Science courses start in week 2 of term 1. Term 2 lectures and workshops begin on the first day of term. Teaching for all Statistical Science courses continues until the last day of each term. Examinations For most courses, you are examined by a combination of in-course assessment and written examination. The final mark is obtained by combining the in-course assessment mark and the written examination mark. For each course described later in this handbook, a guideline is given to indicate the scheme used for combining marks. To pass a course at any level below Masters, a final mark of at least 40% is required. To pass a Masters-level course, a final mark of at least 50% is required. In-course assessment At the beginning of each course, the lecturer will provide details of the method and dates of any in-course assessment. The assessment dates will also be posted on the course Moodle page. Students should ensure that they have no other commitments on these dates. Incourse assessment is a form of examination, and should be treated as such. Each piece of in-course assessment set by the Department of Statistical Science has its own rubric and the instructions given must be followed. In particular, do pay attention to the consequences of missing the deadline set, non-submission and plagiarism;4 any of these can result in your not passing the course. Teaching staff will set aside extra office hours to discuss assessment-related matters and students should respect the lecturers’ time by confining queries to these hours. Some assessments will be in the form of a “take-home” assignment, to be handed in to the Departmental Office or the course lecturer by a set deadline. For such assessments, you will need to sign a cover sheet (provided by the course lecturer) containing a declaration that the submitted work is entirely your own. You will also need to submit your work in a single securely stapled bundle including the cover sheet. Deadlines The Department of Statistical Science aims to allow a reasonable period of time to complete any item of assessment if you manage your time effectively. Late submissions will incur a penalty unless there are extenuating circumstances (e.g. medical) supported by appropriate documentation. Penalties are as follows: 4 Guidance on what constitutes plagiarism (and collusion) is also available from the Department of Statistical Science Undergraduate Student Handbook. 3 For work submitted after the deadline but before the end of the next working day, the full allocated mark will be reduced by 5 percentage marks. For work submitted at any time during the following six days, the mark will be reduced by a further 10 percentage marks. For assessments submitted more than 7 days late but before the end of the second week in term 3, a mark of zero will be recorded. However, the assessment will be considered complete. Word counts Some assessments (usually involving the production of reports) carry a specified maximum word count. Assessed work should not exceed the prescribed length. If submitted work is found to exceed the upper word limit by less than 10%, the mark will be reduced by ten percentage marks, subject to a minimum mark of 40% (50% for fourth year courses) providing the work is of pass standard. For work that exceeds the upper word limit by 10% or more, a mark of zero will be recorded. In the case of coursework that is submitted late and is also over length, the lateness penalty will have precedence. The word count will be considered to include all text and formulae in the abstract and main body of the assessment (including figure and table captions), but to exclude the table of contents, reference lists and appendices. However, this should not be regarded as an invitation to transfer large amounts of surplus text into an appendix and the mark awarded will reflect the standard of judgement shown in the selection of material for inclusion. Use of calculators in examinations Students are expected to bring a calculator with them to examinations for Statistical Science courses. There are eight calculator models that the College has approved for use in examinations. These are the Casio FX83ES, FX83GT+, FX83MS and FX83WA which are all battery powered, and Casio FX85ES, FX85GT+, FX85MS and FX85WA which are all solar powered. No other type of calculator is permitted for use in examinations for the courses described in this document. Students are therefore strongly advised to purchase one of these calculators as soon as possible. The use of a non-approved calculator constitutes an examination irregularity (i.e. cheating) and carries potentially severe penalties. Course details The following pages give more detail, including outline syllabuses, of the courses previously referred to in this document. For most courses, some indication is also given of areas where the course material may be applied in practice; this is to help students decide which options might be most suitable for them. For those courses where both Advanced and Masters level versions are available, details are given for the Advanced version only. The main difference is in the assessment: the Masters level versions have different, shorter examination papers (2 hours instead of 2.5 hours) and the pass mark for these versions is 50% instead of 40%. 4 Level: Intermediate D.S. Moore & G.P. McCabe: Introduction to rd the Practice of Statistics (3 edition). Freeman, 1999, chapters 11 − 13 only. B.F. Ryan & B.L. Joiner: Minitab Handbook th (4 edition).,Duxbury, 2001, chapters 10 and 11 only. Aims of course: To provide an introduction Assessment for examination grading: STAT2002 LINEAR MODELS AND THE ANALYSIS OF VARIANCE (0.5 UNIT) In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2 ½ hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. to linear statistical modelling and to the analysis of variance with emphasis on ideas, methods, applications and interpretation of results. Objectives of course: On successful completion of the course, a student should have an understanding of the basic ideas underlying multiple regression and the analysis of variance; be able to analyse, using a statistical package, data from some common experimental layouts and carry out and interpret simple and multiple regression analyses; understand the assumptions underlying these analyses and know how to check their validity. Other set work: About 8 sets of practical exercises. These will not count towards the examination grading. Timetabled workload: Lectures: 3 hours per week, 1 hour of which to be used as necessary as a problems class. STAT3001 STATISTICAL INFERENCE (0.5 UNIT) Applications: Linear models and the analysis of variance (ANOVA) are two basic and powerful statistical tools to model and analyse the relationship between random variables, and thus are widely used in almost all of classical and modern statistical practice. Their use exemplifies the modern, modelbased approach to statistical investigations, and provides the foundations for more advanced techniques that may be required for the study of complex systems arising in areas such as economics, natural and social sciences and engineering as well as in business and industry. Level: Advanced Aims of course: To provide a grounding in the theoretical foundations of statistical inference and, in particular, to introduce the theory underlying statistical estimation and hypothesis testing, and to provide theory underlying the methods taught in the first and second years of degree courses offered by the Department of Statistical Science or jointly with other Departments. Objectives of course: On successful Prerequisites: MATH7501 or equivalent. completion of the course, a student should be able to: describe the principal features of, and differences between, frequentist, likelihood and Bayesian inference; define and derive the likelihood function based on data from a parametric statistical model, and describe its role in various forms of inference; define a sufficient statistic; describe, calculate and apply methods of identifying a sufficient statistic; define, derive and apply frequentist criteria for evaluating and comparing estimators; describe, derive and apply lower bounds for the variance of an unbiased estimator; define and derive the maximum likelihood estimate, and the observed and expected information; describe, derive and apply the asymptotic distributions of the maximum likelihood estimator and related Course content: Analysis of variance for a variety of experimental designs. Multiple regression: model fitting by least squares, model assessment and selection. Heteroscedastic and autocorrelated errors. Emphasis will be placed on ideas, methods, practical applications, interpretation of results and computer output, rather than on detailed theory. Texts: R.J. Freund & W.J. Wilson: Regression Analysis: Statistical Modelling of a Response Variable. Academic Press, 1998. 2 quantities; conduct Bayesian analyses of simple problems using conjugate prior distributions, and asymptotic Bayesian analyses of more general problems; define, derive and apply the error probabilities of a test between two simple hypotheses; define and conduct a likelihood ratio test; state and apply the Neyman-Pearson lemma. Workshops: two 2 hour classes. Tutorials: 1 hour per week. Applications: The theory of statistical Aims of course: To provide a continuation inference underpins statistical design, estimation and hypothesis testing. As such it has fundamental applications to all fields in which statistical investigations are planned or data are analysed. Important areas include engineering, physical sciences and industry, medicine and biology, economics and finance, psychology and the social sciences. Objectives of course: On successful STAT3002 STOCHASTIC SYSTEMS (0.5 UNIT) Level: Advanced of the study of random processes started in Stochastic Processes (STAT3102), but with the emphasis now on Operational Research applications and including queueing theory, renewal and semi-Markov processes and reliability theory. completion of the course, a student should understand such concepts for stochastic processes as the Markov property, stationarity and reversibility and be able to determine whether such properties apply in straightforward examples; recognise and apply appropriately a range of models, as listed in the course contents, in a variety of applied situations so as to determine properties relevant to the particular application. Prerequisites: STAT3101 or equivalent. Course content: Frequentist and Bayesian approaches to statistical inference. Summary statistics, sampling distributions. Sufficiency, likelihood, and information. Asymptotic properties of estimators. Bayesian inference. Hypothesis testing. Likelihood ratio tests, application to linear models. Texts: Applications: Stochastic systems arise in D.R. Cox: Principles of Statistical Inference. Cambridge University Press, 2006. P.H. Garthwaite, I.T. Jolliffe & B. Jones: nd Statistical Inference (2 edition). Oxford University Press, 2002. P.M. Lee: Bayesian Statistics: An Introduction nd (2 edition). Arnold, 1997. J.A. Rice: Mathematical Statistics and Data rd Analysis (3 edition). Duxbury, 2006. G.A. Young and R.L. Smith: Essentials of Statistical Inference. Cambridge University Press, 2005. many areas of application. They play a fundamental role in Operational Research which addresses real-world problems through the use of mathematics, probability and statistics; topics such as queueing theory and reliability are important examples. Stochastic processes are also vital to applications in finance and insurance, and have many applications in biology and medicine, and in the social sciences. Stochastic process theory underpins modern simulation methods like Markov-chain Monte-Carlo (MCMC). Assessment for examination grading: Prerequisites: STAT3102 or equivalent. In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2 ½ hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. Course content: Markov processes: revision of general concepts, reversibility and detailed balance equations. Renewal theory and reliability: regenerative events and renewal processes, alternating renewal processes, renewal reward processes. Queues: the general single server queue, Markov queueing models (M/M/k), limited waiting room, more general queues (M/G/1, G/M/1), queueing networks. Semi-Markov processes: properties and simple examples. Reliability: single repairable units, simple systems of units. Other set work: About 8 sets of exercises. These will not count towards the examination grading. Timetabled workload: Lectures: 2 hours per week. 3 data arise in many application areas including economics, engineering and the natural and social sciences. The use of historical information to estimate characteristics of observed processes, and to construct forecasts together with assessments of the associated uncertainty, is widespread in these application areas. Texts: G. Grimmett & D. Stirzaker: Probability and rd Random Processes (3 edition). Oxford University Press, 2001. S.M. Ross: Introduction to Probability Models th (9 edition). Academic Press, 2007. nd S.M. Ross: Stochastic Processes (2 edition). Wiley, 1996. D. Stirzaker: Stochastic Models and Processes. Oxford University Press, 2005. E.P.C. Kao: An Introduction to Stochastic Processes. Duxbury, 1997. F.P. Kelly: Reversibility and Stochastic Networks. Wiley, 1979. Prerequisites: STAT3101 and STAT3102, or equivalent. Course content: Forecasting as the Other set work: discovery and extrapolation of patterns in time ordered data. Revision of descriptive measures for multivariate distributions. Descriptive techniques for time series. Models for stationary processes: derivation of properties. Box-Jenkins approach to forecasting: model identification, estimation, verification. Forecasting using ARIMA and structural models. Forecast assessment. State space models and Kalman Filter. Comparison of procedures. Practical aspects of forecasting. Case studies in forecasting. About 8 sets of exercises. These will not count towards the examination grading. Texts: Assessment for examination grading: In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2 ½ hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. J.D. Cryer: Time Series Analysis. PWS Publishers, 1986. C. Chatfield: The Analysis of Time Series: An th Introduction (5 edition). Chapman and Hall, 1996. Timetabled workload: Lectures: 2 hours per week. Workshops: two 2 hour classes. Tutorials: 1 hour per week. Assessment for examination grading: STAT3003 FORECASTING (0.5 UNIT) In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2½ hour written examination in term 3. The final mark is a 4 to 1 weighted average of the written examination and in-course assessment marks. Level: Advanced Aims of course: To introduce methods of finding and extrapolating patterns in timeordered sequences. Other set work: Objectives of course: On successful About 7 sets of exercises. These will not count towards the examination grading. completion of the course, a student should be familiar with the most commonly-used models for time series; be able to derive properties of time series models; be able to select, fit, check and use appropriate models for timeordered data sequences; understand and be able to interpret the output from the time series module of a variety of standard software packages. Timetabled workload: Lectures: 2 hours per week. Workshops: two 2 hour classes. Office hours, during which the lecturer will be available to discuss students' individual problems with the course, will also be provided. Applications: Time series data take the form of observations of one or more processes over time, where the structure of the temporal dependence between observations is the object of interest. Such 4 Other set work STAT3004 DECISION AND RISK (0.5 UNIT) About 4 sets of exercises. These will not count towards the examination grading. Level: Advanced Timetabled workload Lectures: 2 hours per week. Workshops: three 2 hour classes. Office hours, during which the lecturer will be available to discuss students' individual problems with the course, will also be provided. Aims of course: To provide an introduction to the ideas underlying the calculation of risk from a Bayesian standpoint, and the structure of rational, consistent decision making. Objectives of course: On successful completion of the course, a student should be able to understand special measures of risk, understand the concepts of decision theory, find appropriate probability models for risky events and check the validity of the underlying assumptions, and be familiar with methodology for detecting changes in risk levels over time. STAT3005 FACTORIAL EXPERIMENTATION (0.5 UNIT) Level: Advanced Aims of course: To introduce 2k experiments, fractions and blocking. To introduce designs for response surface modelling. To discuss experimental designs to achieve quality control, including Taguchi ideas. Applications: The ideas introduced in this course provide a generic framework for thinking about risk and decision-making in the presence of uncertainty. As such, they can be applied in many diverse areas. The course will use examples from natural hazards, environmental hazards, finance, and social policy. Objectives of course: On completion of the course, a student should have an k understanding of the basic ideas relating to 2 factorial experiments, including for fractional designs and with blocking; should be able to analyse data from these experiments by the analysis of variance and/or graphical techniques; be able to design experiments for response surface modelling; be able to analyse data from factorial experiments with a binomial response variable; be able to design experiments for off-line quality control. Prerequisites: MATH7501 or equivalent. Course content Introduction to Bayesian inference, conditional probability, Bayes's formula, expectation and utility. Elicitation of subjective probabilities and utilities. Criteria for decision making. Comparison of decision rules. Probability models for the occurrence of extreme events. Time series approaches to detecting/ modelling change in risk over time. Texts Applications: Factorial experiments are useful in any situation in which a complex system has to be investigated or optimised. The applications tend to be in the fields of science and technology, though that may be a result of a lack of imagination rather than a lack of wider applicability. Some examples are the optimisation of an industrial production process, the design of a new drug, the design of a human-computer interface, the optimisation of products and marketing campaigns, computer simulations to explore the effect of interventions on, e.g., economy or climate, or the quality of new statistical methodology. rd A. Gelman: Bayesian Data Analysis (3 edition). Chapman & Hall, 2013. J.O. Berger: Statistical Decision Theory and nd Bayesian Analysis (2 edition). Springer, 2010. Assessment for examination grading In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2½ hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. Prerequisites: STAT2002 or equivalent. Course content: Experiments: What is an experiment? Advantages over observational 5 k studies. Importance of randomisation. 2 factorials: Advantages over one-at-a-time experiments. Interactions, two-factor and higher order. Estimation of effects including relation with regression and orthogonality of T X X matrix. Estimation of error using replication and using pre-specified interactions. ANOVA table and relation of sums of squares to effect estimates. Warning about dangers of error estimation using smallest effects. Using normal and half-normal plots for analysis. Fractional factorials, aliasing, choosing a design. Blocking. Model checking and diagnostics. Response k surfaces: 3 , central composite and BoxBehnken designs. Fitting polynomial response surfaces. Analysing experiments with a binomial response variable - logistic regression with multiple predictors. Taguchi’s ideas: quality = lack of variability, control and noise factors, exploiting interactions to reduce process variability. industry, in particular stochastic models and techniques used for financial modelling and derivative pricing. Objectives of course: On successful completion of the course, a student should have a good understanding of how financial markets work, be able to describe basic financial products, have a good knowledge of the basic mathematical and probabilistic tools used in modern finance, including stochastic calculus, and be able to apply the relevant techniques for the pricing of derivatives. Applications: The techniques taught in this course are widely used throughout the modern finance industry, including the areas of trading, risk management and corporate finance. They also have applications in other areas where investment decisions are made under uncertainty, for example in the energy sector where decisions on whether or not to build (i.e. invest in) new power plants are subject to uncertainty regarding future energy demand and prices. Texts: D.C. Montgomery: Design and Analysis of Experiments (5th edition). Wiley, 2000. G.K. Robinson: Practical Strategies for Experimenting. Wiley, 2000. Prerequisites: previous or simultaneous attendance on STAT3101 or equivalent. Assessment for examination grading: Course content: Financial markets, In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2 ½ hour written examination in term 3. The final mark is a 4 to 1 weighted average of the written examination and in-course assessment marks. products and derivatives. The time value of money. Arbitrage Pricing. The binomial pricing model. Brownian motion and continuous time modelling of asset prices. Stochastic calculus. The Black-Scholes model. Risk-neutral pricing. Extensions and further applications of the Black-Scholes framework. Other set work: Texts: About 8 sets of exercises. These will not count towards the examination grading. J. Hull: Options Futures and Other Derivative Securities. Prentice Hall, 2000. M. Baxter & A. Rennie: Financial Calculus. Cambridge University Press, 1996. Timetabled workload: Lectures: 2 hours per week. Workshops: two 2 hour classes. Office hours, during which the lecturer will be available to discuss students' individual problems with the course, will also be provided. Assessment for examination grading: In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2 ½ hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. STAT3006 STOCHASTIC METHODS IN FINANCE (0.5 UNIT) Other set work: Several sets of exercises. These will not count towards the examination grading. Level: Advanced Aims of course: To introduce mathematical concepts and tools used in the finance 6 Timetabled workload: Course content: Utility theory; Real Lectures: 2 hours per week. Workshops: four 2 hour classes. Office hours, during which the lecturer will be available to discuss students' individual problems with the course, will also be provided. options, including dynamic programming, optimal investment rules, and managerial flexibility; Risk management, including valueat-risk and credit risk modelling; More advanced techniques in derivative pricing. Texts: J.Hull: Options Futures and Other Derivative Securities. Prentice Hall, 2000. M. Baxter & A. Rennie: Financial Calculus. Cambridge University Press, 1996. A.K. Dixit & R.S. Pindyck: Investment under Uncertainty. Princeton University Press, 1994. P. Wilmott: Wilmott Introduces Quantitative Finance. Wiley, 2007. STAT3020 STOCHASTIC METHODS IN FINANCE II (0.5 UNIT) Level: Advanced Aims of course: To explore advanced topics in finance via mathematical and statistical methods in order to gain a better understanding of optimal decision making, risk management and derivative pricing techniques. The course will be built on material covered in STAT3006. Assessment for examination grading: In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2½ hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. Objectives of course: On successful completion of the course, a student should be able to: Define the concepts of risk aversion and stochastic dominance, and apply them to manage risk in, and rank capital projects; Understand how dynamic programming can be used to make optimal decisions under uncertainty; Understand how to apply mathematical and statistical modelling techniques to credit risk modelling, value-at-risk measurements and capital adequacy assessments; Understand a range of modelling techniques used in derivative pricing, and the concepts and assumptions that underpin them; Criticise and understand the limitations of these techniques as they are used in the modern finance industry. Other set work: Several sets of exercises. These will not count towards the examination grading. Timetabled workload Lectures: 2 hours per week. Workshops: two 2 hour classes. Office hours, during which the lecturer will be available to discuss students' individual problems with the course, will also be provided. STAT3022 QUANTITATIVE MODELLING OF OPERATIONAL RISK AND INSURANCE ANALYTICS (0.5 UNIT) Applications: The techniques taught in this course are widely used throughout the modern finance industry, including the areas of: business investments decisions (for example in the energy sector where decisions on whether or not to invest in and build new power plants are subject to uncertainty regarding future energy demand and prices); in corporate finance; in trading activities in the financial markets; in financial and other forms of risk management; in valuing and accounting for assets; and in the prudential regulation of the banking industry. Level: Advanced Aims of course: To develop a core mathematical and statistical understanding of an important new emerging area of risk modelling known as Operational Risk which arose from the development of the Basel II/III banking regulatory accords. This will equip students with the necessary tools to undertake core modelling activities required in risk management, capital management and quantitative modelling in modern financial institutions. Prerequisites: STAT3101, STAT3102, STAT3006 or MATH3508. 7 functions, basic asymptotics of compound processes, modelling truncated and censored data constant threshold Poisson process, negative binomial and binomial processes, effects of ignoring data truncation, time varying thresholds, stochastic unobserved thresholds. Measures of risk: coherent and convex risk measures, comonotonic additive risk measures, value-at-risk, expected shortfall, spectral risk measures, distortion risk measures, risk measures and parameter uncertainty. Capital Allocation: coherent capital allocation, Euler allocation, allocation of marginal contributions, estimation of risk measures and numerical approximations. Modelling dependence: dependence modelling in the LDA framework, dependence between frequencies, dependence between severities, dependence between annual losses, common factor models, copula modelling. Combining different data sources: internal, external and expert opinions, Bayesian methods, minimum variance, credibility methods. Loss aggregation: calculation of the annual loss distribution, calculation of the institution wide annual loss. Objectives of course: On completion of the course, a student should be able to: describe the key quantitative requirements of the Basel II/III banking accord; describe the 56 risk cells (business units and risk types) required under the standard Basel II/III regulator frameworks; describe the basic indicator, standardized and advanced measurement approaches; describe the key components of a loss distributional approach model; develop frequency and heavy tailed severity models for Operational risk types including estimation or the model parameters and model selection; describe properties and asymptotic estimators for risk measures that are required for capital calcultion; describe the coherent allocation of capital to business units from the institutional level; introduce and understand the influence of dependence modelling within an LDA model structure; obtain familiarity with particular classes of copula statistical models of basic relevance to practical Operational risk modelling; decide upon appropriate combining approaches for different sources of data required by regulation to be considered in OpRisk settings; develop loss aggregation methods to aggregate OpRisk loss processes. Texts: M.G. Cruz, G.W. Peters & P.V. Shevchenko: Fundamental Aspects of Operational Risk and Insurance Analytics: A Handbook of Operational Risk. Wiley, 2014. G.W. Peters & P.V. Shevchenko: Advances in Heavy Tailed Risk Modelling: A Handbook of Operational Risk. Wiley, 2014. M.G. Cruz: Modelling, Measuring and Hedging Operational Risk. The Wiley Finance Series, 2002. M.G. Cruz (Editor): Operational Risk Modelling and Analysis: Theory and Practice. RISK, 2004. G.N. Gregoriou: Operational Risk Towards Basel III: Best Practices and Issues in Modelling, Management and Regulation. Wiley Finance, 2011. Applications: An integral part of modern financial risk involves Operational Risk, the third key risk type that financial institutions must model and hold capital for according to the international banking regulations of Basel II/III. The key set of concepts and mathematical modelling tools developed in this course will equip the future risk modellers and quantitative analysts with the appropriate core mathematical and statistical background to undertake development of such risk models in industry. Prerequisites: Familiarity with distribution theory and generating functions, for example as encountered in MATH7501 or equivalent. Also some basic experience in either Matlab, Python or R is needed, as taught in STAT7001 or equivalent.. Assessment for examination grading: In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2½ hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. Course content: Key components of operational risk frameworks, external databases, scenario analysis, operational risk in different financial sectors, risk organization and governance. Basic indicator approach, standardized approaches, advanced measurement approach. Loss distributional approach: quantiles and moments, frequency distributions, severity distributions and heavy tailed models, convolutions and characteristic Other set work: About 8 sets of exercises. These will not count towards the examination grading. 8 moments, least squares, maximum likelihood, Cramér-Rao lower bound. Simple examples will be used throughout to motivate and illustrate the topics discussed. Timetabled workload: Lectures: 2 hours per week. Workshops: two 2 hour classes. Office hours, during which the lecturer will be available to discuss students' individual problems with the course, will also be provided. Texts: J.A. Rice: Mathematical Statistics and Data rd Analysis (3 edition). Duxbury, 2006. D.D. Wackerly, W. Mendenhall & R.L. Scheaffer: Mathematical Statistics with th Applications (6 edition). Duxbury, 2002. L.J. Bain & M. Engelhardt: Introduction to nd Probability and Mathematical Statistics (2 edition). Duxbury, 1992. R.V. Hogg & E.A. Tanis: Probability and th Statistical Inference (6 edition). Prentice Hall, 2001. H.J. Larson: Introduction to Probability Theory rd and Statistical Inference (3 edition) Wiley, 1982. A.M. Mood, F.A. Graybill & D.C. Boes: rd Introduction to the Theory of Statistics (3 edition). McGraw-Hill, 2001. V.K. Rohatgi & E. Saleh: An Introduction to nd Probability and Statistics (2 edition). Wiley, 2001. STAT3101 PROBABILITY AND STATISTICS II (0.5 UNIT) Level: Advanced Aims of course: This course continues the study of probability and statistics beyond the basic concepts introduced in Probability and Statistics I (MATH7501). It aims to provide further study of probability theory, in particular as it relates to multivariate random variables, and it introduces formal concepts and methods in statistical estimation. Objectives of course: On successful completion of the course, a student should have an understanding of the properties of joint distributions of random variables and be able to derive these properties and manipulate them in straightforward situations; recognise the χ²; t and F distributions of statistics defined in terms of normal variables; be able to apply the ideas of statistical theory to determine estimators and their properties satisfying a range of estimation criteria. Assessment for examination grading: In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2 hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. Applications: As with other core modules in Other set work: probability and statistics, the material in this course has applications in almost every field of quantitative investigation; the course introduces general-purpose techniques that are applicable in principle to a wide range of real-life situations. About 2 sets of exercises. These will not count towards the examination grading. Prerequisites: MATH7501 or equivalent. STAT3102 STOCHASTIC PROCESSES (0.5 UNIT) Timetabled workload: Lectures: 3 hours per week. Tutorials: 1 hour per week. Course content: Joint probability distributions: joint and conditional distributions and moments; serial expectation; multinomial and multivariate normal distributions. Transformation of random variables: distributions; approximation of moments; order statistics. Moment and probability generating functions: properties; sums of independent random variables; Central Limit Theorem. Relations between standard distributions: ², t and F distributions. Statistical estimation: bias, mean square error, consistency; method of Level: Advanced Aims of course: To provide an introduction to the study of systems which change state stochastically with time and to facilitate the development of skills in the application of probabilistic ideas. Objectives of course: On successful completion of the course a student should understand the Markov property in discrete 9 and continuous time; for discrete-time Markov chains, be able to find and classify the irreducible classes of intercommunicating states, calculate absorption or first passage times and probabilities, assess the equilibrium behaviour; for simple examples of continuoustime Markov chains, be able to write down the forward equations, find and interpret the equilibrium distribution. time, discrete states): general theory, forward and backward equations, equilibrium distributions; Poisson process, interval and counting properties; birth and death processes and other simple examples. Applications: Stochastic processes are vital Assessment for examination grading: to applications in finance and insurance, and have many applications in biology and medicine, and in the social sciences. They also play a fundamental role in areas such as queueing theory and the study of system reliability. The material in this course can be applied to simplified real-world situations, and provides the foundations for further study of more complex systems. In-course assessment (see page 3), the exact method of which will be announced by the lecturer at the beginning of the course. 2 hour written examination in term 3. The final mark is a 9 to 1 weighted average of the written examination and in-course assessment marks. Texts: S.M. Ross: Introduction to Probability Models th (10 edition). Academic Press, 2009. Other set work: About 8 sets of exercises. These will not count towards the examination grading. Prerequisites: Preferably STAT3101 or simultaneous attendance on STAT3101. The course can be taken by students with MATH7501 or equivalent but in that case students should undertake a small amount of preliminary reading about which they should obtain advice at the start of the summer vacation preceding the year in which they take the course. Timetabled workload: Lectures: 3 hours per week. Tutorials: 1 hour per week. The information given in this document is as far as possible accurate at the date of publication but the Department reserves the right to amend it. Course content: Revision of conditional probability. Markov Chains (discrete time and states): transient and equilibrium behaviour, first passage times, classification of states, applications. Markov processes (continuous Department of Statistical Science, UCL, August 2015. 10