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Difficulty: MediumCircular Flow of Income

Match each national economic transaction with its correct flow classification within the open four-sector circular flow of income model.

  • Direct taxation levied on household disposable incomeDomestic Leakage (Withdrawal) to the Public Sector
  • Business expenditures on physical capital goods and machineryDomestic Injection into the Productive Sector
  • Household purchases of imported consumer goods and servicesForeign Leakage (Withdrawal) from the Circular Flow
  • Foreign country payments for domestic export commoditiesForeign Injection into the Circular Flow

Answer

Direct taxation levied on household income matches Domestic Leakage (Withdrawal) to the Public Sector; Business expenditures on capital goods match Domestic Injection into the Productive Sector; Household purchases of imported goods match Foreign Leakage (Withdrawal) from the Circular Flow; Foreign country payments for domestic exports match Foreign Injection into the Circular Flow.
In national income accounting, leakages (or withdrawals) are income streams not spent on domestic consumer goods and services (S+T+MS + T + M). Direct taxation (TT) diverts income to the government sector, and imports (MM) send purchasing power to overseas markets. Conversely, injections (I+G+XI + G + X) add autonomous demand to domestic firms; investment spending (II) funds capital goods, and export revenues (XX) reflect foreign expenditure on domestic products.

Step-by-Step Solution

1
Identify the four-sector circular flow components
The components are Households, Firms, Government, and the Rest of the World, giving leakages (S, T, M) and injections (I, G, X).
Establishing the functional distinction between money entering (injections) and leaving (leakages) the circular income stream.
2
Classify domestic transactions
Taxes (T) reduce household consumption spending (Leakage to public sector), while investment (I) expands production capacity (Domestic injection).
Taxes divert funds out of the basic household-firm loop, whereas investment adds autonomous funds to firms.
3
Classify international transactions
Imports (M) transfer income abroad (Foreign leakage), while export revenue (X) brings external income into domestic production (Foreign injection).
Import expenditure escapes the domestic flow, whereas export sales pump foreign revenue into domestic industries.

Key Concept

Injections and Leakages in a Four-Sector Economy
Estimated Time:1m 30s
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Topics

Circular Flow of Income

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