This course introduces a complete set of techniques and concepts in conducting a scientific enquiry. This subject is inclusive of the planning of social surveys, coverage of surveys, basic ideas of sampling, type of sample design, experiments and investigations, methods of collecting information, questionnaires, scaling methods, response errors, processing of the data, analysis, interpretation and presentation as major areas.

The aim of this unit is to provide students with an understanding of the principles and applications of International Economics, so that students will be prepared to face the future complexities of the world economy.  The unit is divided into two parts International Trade and International Finance. Part one examines reasons for and consequences of international trade. This will cover the law of comparative advantage, the gains from trade, the Ricardian Model, the Heckscher-Ohlin Theory, the standard and new trade theories, tariff and non-tariff barriers and economic integration. Part two, International Finance, focuses on foreign exchange market, fixed and flexible exchange rates, balance of payments and adjustment policies, international capital mobility and international macroeconomic policy coordination.

Environmental Economics will consider market failure (particularly externalities and common property resources), and the economic valuation of environmental amenities such as clean air, wilderness and ecological systems.  This course aims at equipping students with economic methods and tools to analyze basic environmental issues. This course combines theoretical analysis with discussions on specific environmental policies as applied to water, air pollution, energy, climate change and human health issues. In addition, the concepts of sustainability, microeconomic analysis of environmental regulation, the problem of social cost, policy instrument choice, and estimating costs and benefits of environmental improvements will be delivered.

The objective of this course is to provide students with a comprehensive knowledge of Development Economics that is useful in policy making and strategic business decisions. It encompasses, inter alia, areas of economic development, characteristics of developing nations, theories of economic development and growth, poverty, and income distribution. The major focus is on the Sri Lankan economy.