Part II. Definitions/Matching. Please match terms under column A with their definitions in column B Solution Macroeconomics: The branch of economics concerned with the overall performance of the economy Inputs: Commodities or services, such as land, labor, or capital that are used by firms in their production process. Opportunity cost: Measurement of cost based on the value of the next-best forgone alternative. Efficiency: Using the economy’s resources as effectively as possible to satisfy people’s needs and desires. Positive economics: describes the facts and behavior of an economy. Fallacy of composition: Assuming that what is true for part of a system is also true for the whole system. Scarcity: Commodities and resources that we value are limited in supply. Outputs: Goods and services that results from the production process. Laissez-faire: A market economy in which the government has almost no role. Economic goods: Goods that we value are limited in supply. Normative economics: Involves value judgements and ethical perspective about an economy. Free goods: Commodities and resources that is available without limit. Microeconomics: Branch of economics concerned with the behavior of individual entities such as markets, firms, and households..