20. Why have some countries prospered economically while others have not? Your response should integrate at least three or four of the main themes and topics studied in this class. Use specific examples of developed, developing, and least developed countries in your response. Economic development refers to any change in a country’s overall balance of economic activities, it usually refers to where jobs are increasingly located in industrial sectors. Economic activity can be divided into three sectors: Primary production, which includes agriculture, mining, and fishing. Secondary production, which is industrial production. Tertiary sector, which consists of services, such as tourism and financial services. Countries with greater income are the most developed countries, and the poorest are the least developed. The UN and World Bank classify all world economies by GNI per capita and break them into three separate categories that are developed, developing, and transition economies. The world developed countries, such as Canada, are mostly industrialized economies, highly integrated in the global economy, and have reached high income levels. They include North America, EU countries and Japan. Only those in the high-income category are developed. Developing countries are mainly in South America, Africa, and Asia. An example of developing country is Algeria, are changing from agricultural to industrial production, and building technological capacity. Most of the world’s countries are within the developing countries. Least developed countries, which have the world’s fastest-growing population, such as South Asia, are mainly agricultural producers, with little industrialization. These societies have fallen behind other developing countries, experiencing extreme poverty, poor health conditions and limited educational systems. Moreover, these countries are at a high risk from the effects of climate change