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1. What is the basic economic problem that all societies face?
Scarcity
ExplanationScarcity is the fundamental economic challenge of limited resources and unlimited wants.
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3. According to the law of demand, what happens to quantity demanded when the price of a good rises?
Decreases
ExplanationAccording to the law of demand, there is an inverse relationship between price and quantity demanded; as price increases, quantity demanded decreases.
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7. Which economic system is characterized by private ownership of the means of production and market-driven decisions?
Capitalism
ExplanationCapitalism is an economic system where private individuals or businesses own the means of production, and market forces determine prices and production.
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10. What is the main function of the Federal Reserve System (the Fed) in the United States?
Monetary policy
ExplanationThe Fed's main function is to conduct monetary policy, influencing money supply and interest rates to achieve economic goals.
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2. Which of the following is a macroeconomic indicator?
Consumer Price Index (CPI)
ExplanationCPI is a macroeconomic indicator measuring the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services.
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4. What is the formula for calculating GDP (Gross Domestic Product)?
GDP = Consumption + Investment + Government Spending + Net Exports
ExplanationGDP is calculated by summing up consumption, investment, government spending, and net exports.
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6. What is the Phillips Curve used to depict in economics?
Inflation and unemployment trade-off
ExplanationThe Phillips Curve illustrates the inverse relationship between inflation and unemployment; policymakers face a trade-off between the two.
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9. According to the law of diminishing marginal returns, what happens as more units of a variable input are added to a fixed input in the production process?
Total output increases at a decreasing rate
ExplanationThe law of diminishing marginal returns states that as additional units of a variable input are added to a fixed input, the total output increases at a decreasing rate.
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12. In the context of international trade, what is a trade surplus?
Exports exceed imports.
ExplanationA trade surplus occurs when a country's exports are greater than its imports, leading to a positive balance of trade.
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13. What is the concept of elasticity in economics?
The responsiveness of quantity demanded to a change in price.
ExplanationElasticity measures how sensitive the quantity demanded or supplied of a good is to a change in price.
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5. In economics, what does the term 'opportunity cost' refer to?
The cost of the next best alternative forgone
ExplanationOpportunity cost is the value of the next best alternative foregone when a decision is made.
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8. What is the concept of the 'Laffer Curve' related to in economics?
Taxation and government revenue
ExplanationThe Laffer Curve shows the relationship between tax rates and tax revenue; it suggests that there is an optimal tax rate for maximizing government revenue.
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11. What is the difference between nominal GDP and real GDP?
Nominal GDP includes inflation, while real GDP does not.
ExplanationNominal GDP includes the current prices of goods and services, while real GDP adjusts for inflation, providing a more accurate measure of economic growth.
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15. What is the law of diminishing marginal utility in economics?
As consumption of a good increases, its total utility decreases.
ExplanationThe law of diminishing marginal utility states that as a person consumes more units of a good, the additional satisfaction or utility derived from each additional unit decreases.
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16. What is the difference between a progressive tax and a regressive tax?
Progressive tax takes a higher percentage from high-income individuals, while regressive tax takes a higher percentage from low-income individuals.
ExplanationProgressive taxes impose a higher rate on higher incomes, while regressive taxes take a larger proportion from lower incomes.
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17. What is the Tragedy of the Commons in the context of environmental economics?
Overconsumption of resources leading to their depletion.
ExplanationThe Tragedy of the Commons occurs when individuals, acting in their self-interest, deplete shared resources, leading to environmental degradation.