Methods of calculating national income - Expenditure Method

A warehouse is a fixed asset that provides storage services to the firm for several years. Spending on its construction adds to the firm’s productive and business capacity and is therefore investment expenditure, specifically fixed capital formation. It is not household consumption, a transfer payment, or government consumption because the asset is created for business use.

In the expenditure formula, X denotes exports and M denotes imports. Therefore, X − M represents net exports, or the net contribution of the foreign sector to domestic expenditure. Exports add to expenditure on domestically produced output, whereas imports are deducted because they were produced abroad. The complete identity is GDP = C + I + G + (X − M).

In the expenditure method, C represents private final consumption expenditure. It measures household spending on final goods and services, such as food, clothing, transport, and personal services, during the accounting period. It does not mean capital consumption, tax collection, or imports; imports are represented by M in the expression C + I + G + (X − M).

In the expenditure identity GDP = C + I + G + (X − M), I denotes investment expenditure. It includes spending on fixed capital assets such as buildings and machinery, as well as changes in inventories. Imports are represented by M, exports by X, and taxes are not the meaning of I. Investment therefore adds to the economy’s capital stock or inventories.

In the expenditure method, G denotes government final consumption expenditure. It covers the government’s spending on currently produced goods and services used to provide public services, including items such as public administration, education, and health services. G does not mean gross profit, domestic income, or private saving; those are separate concepts.

Final expenditure means spending on goods and services purchased for final use rather than for resale or further production. It includes household consumption, investment, government final expenditure, and net exports in the expenditure approach. Intermediate inputs are excluded to avoid double counting, while purchases of old goods and financial assets do not represent current production.

Medical treatment purchased by a household from a private hospital is a final service consumed by that household. Its payment is therefore included in private final consumption expenditure. The household is not using the treatment as an input to produce another market service, so it is not intermediate consumption. It is also neither government investment nor an export.

In the expenditure method of calculating national income, X represents exports and M represents imports. When imports exceed exports, M is larger than X, so subtracting M from X gives a negative value: X − M < 0. This means the country has negative net exports, and imports reduce the total expenditure estimate of domestic output.

The expenditure method measures the value of national output by adding expenditure on final goods and services. It commonly includes private final consumption expenditure, government final consumption expenditure, gross capital formation, and net exports. Wages and profits belong to the income method, not the basic expenditure identity.

The expenditure method is based on the total final expenditure generated by the economy during a specified accounting period. It includes spending on final consumption, investment, government final purchases, and net exports, while intermediate goods are excluded because their value is already included in final products.

NX stands for net exports. It is defined as the value of exports of goods and services minus the value of imports, so NX = X − M. Exports add to domestic production-related expenditure, whereas imports are subtracted because they represent foreign production. NX should not be confused with NFIA.

A student’s purchase of an examination-preparation book is final expenditure when the book is bought for personal or educational use rather than for further production or resale. Paper purchased by a publisher and flour purchased by a bakery are intermediate inputs. Pens bought by a shopkeeper for resale are also not final expenditure at that stage. Therefore, option A is correct.

A household’s payment for a doctor’s consultation is expenditure on a current service that is directly consumed by household members. It does not purchase a capital asset, represent government provision, or involve an international transaction. Therefore, the payment is included in private final consumption expenditure, one of the principal components of aggregate expenditure. Option A is correct.

Change in stock, or change in inventories, is calculated as closing stock minus opening stock. Therefore, change in stock = 90 − 120 = −30. The negative sign means inventories decreased by 30 units during the period. In national-income accounting, this signed change is recorded as inventory investment and is not replaced by the positive magnitude alone.

Net exports are calculated as exports minus imports: NX = X − M. When imports are greater than exports, M is larger than X, so the subtraction produces a negative number. Negative net exports indicate that the country has a trade deficit for the period. Net exports would be zero only if exports and imports were exactly equal.

The expenditure method measures the value of domestic output by adding expenditure on final goods and services. It generally includes private final consumption expenditure, government final consumption expenditure, investment expenditure, and net exports. It does not directly add wages, profits, value added, or tax collections; those belong to other aspects or adjustments of national-income accounting. Therefore, option A is correct.

Software produced in India and sold to a foreign customer is a domestically produced service purchased by the rest of the world. It is therefore recorded as an export and increases the X component of net exports. In the expenditure identity, GDP = C + I + G + (X − M). Imports are purchases of foreign output by domestic residents, so they do not describe this transaction.

GFCE means Government Final Consumption Expenditure. It records the value of final goods and services purchased or provided by government units for collective or individual public consumption, such as administration, defence, and many public services. Household consumption is recorded as PFCE, and government investment is classified separately under capital formation.

Net exports are calculated as exports minus imports: X − M. Therefore, net exports = 300 − 220 = 80. A positive value of 80 means that exports exceed imports by 80 units. The value 520 would be the sum of exports and imports, while −80 would incorrectly reverse the subtraction order and would apply only when imports exceed exports by 80.

Net exports are represented by NX = X − M, where X means exports and M means imports. Exports are spending by foreigners on domestically produced goods and services, while imports are deducted because they are included in domestic expenditure but were produced abroad. Therefore, the difference between exports and imports is correct.

Change in stock or inventory is calculated as closing stock minus opening stock: Change in stock = Closing stock − Opening stock. When closing stock is smaller than opening stock, the subtraction produces a negative value. This indicates that inventories have been reduced during the period, so option C is correct.

Private final consumption expenditure consists of spending by households on goods and services for their final use. Clothes purchased by a family are consumed by the household and therefore qualify. A bridge is government investment, raw material is intermediate expenditure, and shares are financial assets rather than current consumption.

An e-book purchased by a household for reading or personal use is a final digital product or service, not an input into further production. Because it is supplied by a domestic producer, it is treated as domestic final consumption rather than an import. The household’s purchase is therefore recorded under private final consumption expenditure, or PFCE.

Exports are goods and services produced within the domestic territory and purchased by the foreign sector. Consequently, exports represent foreign expenditure on domestic production and are added in the expenditure identity for GDP: GDP = private consumption + investment + government expenditure + exports − imports. Imports are deducted because they are domestic expenditure on foreign production.

New furniture purchased by a household for its own use is a durable final consumption good. The household is the final user, so the expenditure is included in private final consumption expenditure (PFCE). It is not gross capital formation because the household is not acquiring it as productive capital, not government consumption because the purchaser is a household, and not intermediate consumption because it is not used to produce another good for sale.