{
  "title": "Advanced Economics O/X",
  "description": "Core principles of micro and macro economics",
  "languageCode": "en",
  "cards": [
    {
      "type": "ox",
      "prompt": "According to the law of demand, all else equal, when the price of a good rises its quantity demanded tends to fall.",
      "answer": true,
      "explanation": "The law of demand states that higher prices generally reduce the quantity demanded."
    },
    {
      "type": "ox",
      "prompt": "Inflation is a general and sustained increase in prices that reduces the purchasing power of money.",
      "answer": true,
      "explanation": "Inflation erodes purchasing power as the same money buys fewer goods over time."
    },
    {
      "type": "ox",
      "prompt": "Opportunity cost is the combined value of every alternative given up, not just the next-best one.",
      "answer": false,
      "explanation": "Opportunity cost is the value of the single next-best alternative forgone, not the sum of all alternatives."
    },
    {
      "type": "ox",
      "prompt": "Raising the central bank's key interest rate generally tends to cool borrowing, spending, and investment.",
      "answer": true,
      "explanation": "Higher rates raise borrowing costs, which tends to slow spending and investment."
    },
    {
      "type": "ox",
      "prompt": "GDP measures the market value of final goods and services produced within a country over a period.",
      "answer": true,
      "explanation": "GDP sums the market value of final output produced within a nation's borders in a period."
    },
    {
      "type": "ox",
      "prompt": "In a monopoly, many firms compete so that no single firm can influence the price.",
      "answer": false,
      "explanation": "A monopoly has a single dominant supplier that can influence price; many-firm competition is the opposite."
    },
    {
      "type": "ox",
      "prompt": "Supply and demand determine the equilibrium price where quantity supplied equals quantity demanded.",
      "answer": true,
      "explanation": "At equilibrium the quantity supplied equals the quantity demanded, setting the market price."
    },
    {
      "type": "ox",
      "prompt": "Deflation is a sustained fall in the general price level.",
      "answer": true,
      "explanation": "Deflation is a sustained decrease in prices, which can discourage spending and deepen slumps."
    },
    {
      "type": "choice",
      "prompt": "What policy tool does a central bank use to manage inflation by adjusting interest rates and money supply?",
      "choices": [
        "Monetary policy",
        "Fiscal policy",
        "Trade policy",
        "Industrial policy"
      ],
      "answer": 1,
      "explanation": "Monetary policy is run by a central bank to manage money supply, interest rates, and inflation."
    },
    {
      "type": "choice",
      "prompt": "Which term describes goods that tend to be bought less as consumer income rises?",
      "choices": [
        "Inferior goods",
        "Luxury goods",
        "Normal goods",
        "Public goods"
      ],
      "answer": 1,
      "explanation": "Demand for inferior goods falls as income rises, unlike normal or luxury goods."
    },
    {
      "type": "text",
      "prompt": "What is the government's use of taxation and spending to influence the economy called? (two words)",
      "answers": [
        "fiscal policy"
      ],
      "explanation": "Fiscal policy uses government taxing and spending to influence aggregate demand and the economy."
    },
    {
      "type": "text",
      "prompt": "What term describes a general, sustained rise in prices that reduces money's value?",
      "answers": [
        "inflation"
      ],
      "explanation": "Inflation is a sustained increase in the general price level that lowers purchasing power."
    },
    {
      "type": "ox",
      "prompt": "According to comparative advantage, countries gain from trade by specializing in goods they can produce at a lower opportunity cost.",
      "answer": true,
      "explanation": "Comparative advantage says trade benefits both parties when each specializes where its opportunity cost is lowest."
    },
    {
      "type": "ox",
      "prompt": "A price ceiling set below the equilibrium price typically creates a surplus of the good.",
      "answer": false,
      "explanation": "A binding price ceiling creates a shortage: at the artificially low price, quantity demanded exceeds quantity supplied."
    },
    {
      "type": "choice",
      "prompt": "Which measure tracks the average change in prices of a fixed basket of consumer goods and services?",
      "choices": [
        "GDP deflator",
        "Producer Price Index",
        "Consumer Price Index",
        "Gini coefficient"
      ],
      "answer": 3,
      "explanation": "The Consumer Price Index (CPI) measures the average price change of a typical basket of consumer goods and services."
    },
    {
      "type": "ox",
      "prompt": "Demand is called elastic when quantity demanded responds strongly to a change in price.",
      "answer": true,
      "explanation": "Price elasticity measures responsiveness; elastic demand means a small price change causes a large change in quantity demanded."
    },
    {
      "type": "ox",
      "prompt": "Public goods, such as national defense, are excludable and rival in consumption.",
      "answer": false,
      "explanation": "Public goods are non-excludable and non-rival: no one can be barred from them, and one person's use does not reduce another's."
    },
    {
      "type": "text",
      "prompt": "What term describes how easily an asset can be converted into cash without losing value?",
      "answers": [
        "liquidity",
        "asset liquidity"
      ],
      "explanation": "Liquidity is the ease with which an asset can be turned into cash; cash itself is the most liquid asset."
    },
    {
      "type": "ox",
      "prompt": "Nominal GDP is measured at current prices, while real GDP adjusts for inflation.",
      "answer": true,
      "explanation": "Real GDP removes the effect of price changes, so it reflects changes in actual output rather than inflation."
    },
    {
      "type": "ox",
      "prompt": "In a progressive tax system, everyone pays the same percentage of their income in tax.",
      "answer": false,
      "explanation": "A progressive tax charges higher rates on higher incomes; a flat (proportional) tax applies the same rate to everyone."
    },
    {
      "type": "choice",
      "prompt": "In which market structure do many sellers offer identical products, so no single seller can influence the price?",
      "choices": [
        "Monopoly",
        "Perfect competition",
        "Oligopoly",
        "Monopolistic competition"
      ],
      "answer": 2,
      "explanation": "Perfect competition features many price-taking firms selling identical products with free market entry and exit."
    },
    {
      "type": "ox",
      "prompt": "Marginal cost is the additional cost of producing one more unit of output.",
      "answer": true,
      "explanation": "Marginal cost measures the extra cost of one additional unit and guides a firm's optimal output decision."
    },
    {
      "type": "ox",
      "prompt": "Stagflation refers to a period of high economic growth combined with low inflation.",
      "answer": false,
      "explanation": "Stagflation is the opposite: stagnant growth and high unemployment occurring together with high inflation, as in the 1970s."
    },
    {
      "type": "text",
      "prompt": "What is the rate at which one currency can be traded for another called? (two words)",
      "answers": [
        "exchange rate",
        "the exchange rate",
        "currency exchange rate",
        "foreign exchange rate"
      ],
      "explanation": "The exchange rate is the price of one currency in terms of another and shifts with supply and demand in currency markets."
    },
    {
      "type": "ox",
      "prompt": "A negative externality occurs when a transaction imposes costs on third parties, as with pollution.",
      "answer": true,
      "explanation": "Externalities are costs or benefits that fall on outsiders; pollution is the classic negative externality."
    },
    {
      "type": "ox",
      "prompt": "When a country's currency depreciates, its exports generally become more expensive for foreign buyers.",
      "answer": false,
      "explanation": "Depreciation makes exports cheaper for foreigners and imports more expensive at home, which tends to boost export demand."
    },
    {
      "type": "choice",
      "prompt": "Which economist wrote 'The Wealth of Nations' (1776) and described the 'invisible hand' of markets?",
      "choices": [
        "John Maynard Keynes",
        "Karl Marx",
        "David Ricardo",
        "Adam Smith"
      ],
      "answer": 4,
      "explanation": "Adam Smith's 'The Wealth of Nations' founded classical economics and used the invisible hand to describe self-regulating markets."
    },
    {
      "type": "ox",
      "prompt": "Diminishing marginal utility means each additional unit of a good tends to give less extra satisfaction than the one before.",
      "answer": true,
      "explanation": "As consumption increases, the added satisfaction from each extra unit typically falls — the law of diminishing marginal utility."
    },
    {
      "type": "ox",
      "prompt": "The unemployment rate counts everyone without a job, including people who are not looking for work.",
      "answer": false,
      "explanation": "The unemployment rate only counts jobless people actively seeking work; those not searching are outside the labor force."
    },
    {
      "type": "text",
      "prompt": "What is a government payment that lowers producers' costs to encourage the output of a good called?",
      "answers": [
        "subsidy",
        "a subsidy",
        "subsidies",
        "government subsidy"
      ],
      "explanation": "A subsidy is a government payment or tax break that lowers production costs to encourage the supply of a good or service."
    },
    {
      "type": "ox",
      "prompt": "An oligopoly is a market dominated by a small number of large firms.",
      "answer": true,
      "explanation": "In an oligopoly a few large firms dominate, so each firm's decisions strongly affect its rivals."
    },
    {
      "type": "ox",
      "prompt": "A budget deficit occurs when a government's revenue exceeds its spending.",
      "answer": false,
      "explanation": "A deficit means spending exceeds revenue; when revenue exceeds spending, the government runs a surplus."
    },
    {
      "type": "choice",
      "prompt": "Which term is commonly defined informally as two consecutive quarters of falling real GDP?",
      "choices": [
        "Depression",
        "Hyperinflation",
        "Recession",
        "Stagnation"
      ],
      "answer": 3,
      "explanation": "A recession is a broad economic downturn, often informally identified as two straight quarters of declining real GDP."
    },
    {
      "type": "ox",
      "prompt": "Rational decision-making should ignore sunk costs, since they cannot be recovered.",
      "answer": true,
      "explanation": "Sunk costs are already spent and unrecoverable, so rational choices should weigh only future costs and benefits."
    },
    {
      "type": "ox",
      "prompt": "According to the law of supply, producers generally offer less of a good for sale as its price rises.",
      "answer": false,
      "explanation": "The law of supply says the opposite: higher prices make production more profitable, so quantity supplied tends to rise."
    },
    {
      "type": "text",
      "prompt": "What is the strategy of spreading investments across different assets to reduce risk called?",
      "answers": [
        "diversification",
        "portfolio diversification",
        "diversifying",
        "diversify"
      ],
      "explanation": "Diversification spreads money across varied assets so that losses in one holding are offset by others, lowering overall risk."
    }
  ]
}
