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SubjectsEconomics
समष्टि अर्थशास्त्र क्या है?
In Class 12 Economics, students learn that macroeconomics studies the economy as a whole rather than individual consumers or firms. The topic introduces key ideas such as national income, output, employment, the general price level, economic growth and aggregate demand. It also helps learners understand how measures like GDP and related aggregates describe economic activity and how these concepts connect with broader questions about production, income and employment in an economy.
TOPIC PRACTICE
Up to 10 questions from this page. Select your focus, then start.
The output of one firm is ordinarily a microeconomic matter. It becomes macroeconomically significant when the decline is widespread across industries or firms and reduces aggregate production, income or employment. The key change is from an isolated individual outcome to an economy-wide aggregate effect.
Inflation and unemployment are both important macroeconomic indicators, but they describe different dimensions of economic performance. Focusing only on price stability may hide job losses, falling incomes or unused resources. Sound policy evaluation therefore considers several objectives and indicators, including output, employment, inflation and stability.
A simultaneous fall in output, income and employment indicates a broad contraction in economic activity rather than an isolated market change. Such a pattern is consistent with recessionary conditions, although a formal recession requires an appropriate assessment of duration and national data. It signals weakness in aggregate demand or supply.
Macroeconomic policy aims to support output and employment, but excessive aggregate demand can create demand-pull inflation. Therefore, policymakers must examine both real growth and the general price level. A rise in production is beneficial only if it does not generate destabilising inflation; this is why inflationary pressure must be monitored alongside demand.
Macroeconomics studies economy-wide outcomes, not only domestic income or production. If real income increases while the external deficit expands, analysts must examine the balance of payments, foreign-exchange position, import dependence and sustainability of external borrowing. Growth is stronger when it is accompanied by a stable external sector.
Macroeconomic assessment does not stop at measuring total output. It can also ask who receives the benefits of growth. If output rises but labour receives a smaller share of national income, the distribution of gains, wage conditions, inequality and inclusiveness of growth become important analytical concerns.
Use the expenditure formula: GDP = C + I + G + (X − M). Substituting the values gives 500 + 200 + 150 + (100 − 50) = 500 + 200 + 150 + 50 = 900 crore. Therefore, the correct answer is ₹900 crore. Computing net exports first helps avoid reversing exports and imports.
GDP measures the value of final goods and services produced during the current accounting period. A newly manufactured mobile phone represents current production and its value can be counted when sold as a final good. Reselling an old phone merely transfers ownership of a product made in an earlier period, so its full value is not counted again in current GDP. Any separately produced current resale or brokerage service may be counted.
The GDP deflator is calculated as (Nominal GDP ÷ Real GDP) × 100. Real GDP is 80% of ₹2,400 crore, so it equals 0.80 × 2,400 = ₹1,920 crore. Hence, the deflator is (2,400 ÷ 1,920) × 100 = 125. Option A represents the real-to-nominal ratio, not the deflator formula, while 100 would indicate equal nominal and real GDP. Therefore, option D is correct.
Inflation measured by an index is calculated from the percentage change in the index, not merely from the point difference. The GDP deflator rises from 140 to 147, an increase of 7 index points. Therefore, inflation is (147 − 140) ÷ 140 × 100 = 7 ÷ 140 × 100 = 5%. The 7-point change is not a 7% rate, so option A is correct.
QUIZ COMPLETE
