1 → b : Microeconomics studies individual consumers and firms that maximize utility and profit. 2 → a : Macroeconomics focuses on aggregate variables and the economy as a whole. 3 → d : General equilibrium refers to equilibrium across individual markets taken together. 4 → c : Macro agents include institutions such as the Reserve Bank of India and the Government that influence the overall economy. Therefore, Option D is correct.

Macroeconomics deals with economy-wide issues such as unemployment, inflation, national income and government policies. Formulating taxation policies to reduce unemployment is a macroeconomic function because it affects the economy as a whole. The remaining options relate to individual consumers, firms or markets, which are studied under microeconomics.

The logical process begins by monitoring the prices of individual commodities across markets (1). After sufficient observation, an overall upward trend in prices is identified (2). This aggregate rise is recognised as inflation (3). Once inflation is identified, macroeconomic policies are implemented to control rising prices (4). Therefore, the correct sequence is 1 → 2 → 3 → 4.

A worsening employment condition is characterized by a decline in employment along with a fall in aggregate output. This indicates that economic activity is slowing down and the economy may be heading towards a depression. Option B correctly represents this relationship. The remaining options do not describe a worsening employment condition.

A decline in both employment and production levels indicates that the economy is slowing down. These are key macroeconomic indicators used to identify recessionary or depression-like conditions. Therefore, employment is the correct answer. The other options are not standard indicators used in this context.

Statement 1 → Correct because a continuous fall in production is an important indicator of recession or depression. Statement 2 → Incorrect because an increase in food grain output alone cannot be treated as a definite indicator of economic decline. Statement 3 → Correct because rapid declines in prices, wages and profits often accompany economic contraction. Statement 4 → Correct because falling employment together with declining production is a major indicator of worsening economic conditions. Therefore, Statements 1, 3 and 4 are correct.

The Assertion is correct because microeconomic analysis of individual markets does not necessarily explain equilibrium between aggregate demand and aggregate supply for the entire economy. The Reason is incorrect because consumers and producers generally act to maximize their own utility and profits rather than the welfare of the entire economy. Therefore, Option B is correct.

1 → b : Taxation is a fiscal policy instrument implemented through government budgetary policies. 2 → a : Money supply is regulated by the Reserve Bank of India through monetary policy. 3 → d : The central bank influences interest rates through its lending and monetary operations. 4 → c : Wages and employment are influenced by labour market regulations and employment policies. Therefore, Option A is correct.

The reasoning begins with the fact that studying every individual commodity is too complex (1). Economists then observe that the outputs of different goods generally move together (2). This allows them to introduce a single imaginary representative good (3), whose production level is used to represent aggregate output (4). Therefore, the correct sequence is 1 → 2 → 3 → 4.

Macroeconomics simplifies the study of prices by using a representative imaginary good. The price of this representative good is taken to represent the aggregate price level of the economy. This avoids analysing the prices of every individual commodity separately. Therefore, Option A is correct.

Macroeconomics simplifies employment analysis by using a representative production unit whose employment level reflects the general employment situation of the economy. This avoids analysing employment separately for every production unit. Therefore, Option D is correct.

While using representative labour in macroeconomics, detailed distinctions among different categories of workers are ignored. The NCERT example notes that this approach may not distinguish the labour of a manager from that of an accountant within the same firm. Therefore, Option B is correct.

1 → b : Growth in food grains is generally accompanied by growth in industrial goods. 2 → c : A fall in aggregate production indicates a possible depression. 3 → d : Industrial growth generally occurs alongside agricultural growth. 4 → a : Co-movement means variables tend to rise or fall simultaneously. Therefore, Option A is correct.

Statement 1 → Incorrect because prices of different goods generally tend to move in the same, not opposite, direction. Statement 2 → Correct because macroeconomics assumes that price movements of one representative commodity broadly reflect those of others. Statement 3 → Correct because a rapid rise in the general price level indicates inflation. Statement 4 → Correct because the general price level summarizes price movements across the economy. Therefore, Statements 2, 3 and 4 are correct.

The process of macroeconomic simplification begins by recognizing that the output and prices of different goods generally move together (1). Based on this observation, economists simplify analysis by focusing on a single imaginary representative commodity (3). Since this representative commodity reflects the behaviour of most goods, they can abstain from studying numerous individual commodities separately (2). Finally, the variables of the representative commodity, such as prices and wages, are analysed to understand the performance of the entire economy (4). Therefore, the correct sequence is 1 → 3 → 2 → 4.

When economists move beyond the representative-good approach, they divide the economy into major sectors such as agriculture, industry and services. The total output of the economy is then obtained by combining the outputs of these sectors. Therefore, the conceptual representation is: Total Output = Output(Agriculture) + Output(Industry) + Output(Services) Hence, Option B is correct.

The representative-good approach enables economists to avoid analysing every individual commodity separately. Since many commodities show similar movements in prices, wages and output, macroeconomists can usefully abstain from studying each one in detail and instead focus on a representative commodity. Therefore, Option C is correct.

Statement 1 → Correct because the representative good is assigned a production level corresponding to the average production of all goods and services. Statement 2 → Incorrect because the representative-good approach includes the entire economy, including services, rather than ignoring them. Statement 3 → Correct because macroeconomic simplification assumes that production levels of different goods generally move together. Statement 4 → Correct because the representative good is introduced to simplify the analysis of aggregate production. Therefore, Statements 1, 3 and 4 are correct.

The passage explains that treating a single category of labour as representative of all labour may overlook important distinctions among different occupations. As an example, it states that this approach may fail to distinguish the labour of a manager from that of an accountant. Therefore, Option A is correct.

The passage explains that although a representative good simplifies macroeconomic analysis, it may overlook important differences among commodities. Agricultural and industrial goods have different production conditions and distinctive characteristics. Therefore, economists sometimes analyse a handful of different kinds of goods to better represent the economy. Hence, Option D is correct.