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Macroeconomics: GDP and National Income Measurement

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  • What is Gross Domestic Product (GDP)?

    GDP is the market value of all final goods and services produced within a country during a specific period, usually one year.

  • Why is GDP measured using market value?

    Market value allows aggregation of diverse goods and services by valuing them in monetary terms using their selling prices.

  • What are final goods and services in GDP calculation?

    Goods and services purchased by the final user, excluding intermediate goods to avoid double counting.

  • Does GDP include production by foreign firms within a country?

    Yes, GDP includes all production within a country's borders regardless of ownership.

  • What time frame does GDP cover?

    GDP measures production during a specific period, typically one year, counting only new goods and services produced in that period.

  • What are the two main ways to measure total economic activity?

    By measuring total production or total income, which are equivalent since production generates income.

  • What are the four major expenditure categories used to calculate GDP?

    Consumption (C), Investment (I), Government Purchases (G), and Net Exports (NX).

  • What does consumption (C) include in GDP?

    Spending by households on goods and services, excluding new houses.

  • What is included in investment (I) in GDP?

    Spending on new factories, machinery, additions to inventories, and new houses by firms and households.

  • What are government purchases (G) in GDP?

    Spending by federal, state, and local governments on goods and services, excluding transfer payments.

  • How are net exports (NX) calculated?

    Exports minus imports; exports add to GDP, imports are subtracted to measure domestic production.

  • What is the value-added approach to measuring GDP?

    Summing the market value added by each firm at every production stage to avoid double counting.

  • What are some shortcomings of GDP as a measure of total production?

    It excludes household production and underground economy activities.

  • Why might GDP growth over time still be a reasonable measure despite shortcomings?

    Because the size of household production and underground economy likely remains stable year to year.

  • What are some limitations of GDP as a measure of well-being?

    It ignores leisure, pollution, crime, social problems, and income distribution.

  • What is the difference between nominal GDP and real GDP?

    Nominal GDP is valued at current prices; real GDP is valued at base-year prices to remove inflation effects.

  • What is the GDP deflator?

    A price level measure calculated as (Nominal GDP / Real GDP) × 100.

  • What is Gross National Product (GNP)?

    Production by a nation's citizens, including overseas production, unlike GDP which is location-based.

  • What is national income?

    GDP minus depreciation (consumption of fixed capital).

  • What is disposable personal income?

    Personal income minus personal taxes; the amount households can spend or save.

  • How do GDP and Gross Domestic Income (GDI) differ in recession measurement?

    GDP measures output; GDI measures income. They can show different short-run economic signals.