ECON 102 Lecture Notes - Lecture 2: Gross Domestic Product, Macroeconomics

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United states economy historical performance: economists use all kinds of data to calculate an economy"s success, of specific interest are three macroeconomic variables: actual gross domestic product (gdp), inflation rate and unemployment rate. Real gdp measures the overall income of everybody in the economy (adjusted to price levels) The inflation rate measures how high prices are increasing. The unemployment rate measures the percentage of the out-of-work labor force. Macroeconomists research how they evaluate these factors, why they shift over time and how they communicate with each other. There are two aspects to this figure worthy of mention. Real gdp per person is around five times its 1900 level today. This annual income growth helps us to enjoy a higher standard of living than our grandparents did. Second, though real gdp is increasing over most years, the growth is not steady. Repeated cycles during which real gdp falls, with the early 1930s being the most dramatic examples.

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