4.16 - Interdependence Between Accounts

Interdependence between balance of payments accounts

The balance of payments records all transactions between a country and the rest of the world, with its accounts interconnected to ensure overall balance.

The balancing identity in the balance of payments

$$\text{CA}+\text{FA}+\text{KA}=0$$

Where:

• CA = Current account balance
• FA = Financial account balance
• KA = Capital account balance

As the capital account is usually small, the relationship simplifies to:

$$\text{CA}\approx -\text{FA}$$

This shows that a current account deficit is matched by an equal financial account surplus, and vice versa. For example, if a country imports more than it exports (creating a current account deficit), it finances this through inflows in the financial account.

Autonomous and accommodating transactions

Transactions in the balance of payments are classified based on their purpose, distinguishing between those driven by economic motives and those that adjust to maintain balance.

Types of transactions in the balance of payments

• Autonomous transactions - These occur for business or economic reasons and include most items in the current account, capital account, and financial account (excluding changes in official reserves).
• Accommodating transactions - These involve changes in official reserve holdings by the central bank to offset imbalances from autonomous transactions, ensuring the overall balance of payments equals zero.

For the balance of payments to balance, accommodating transactions must equal the sum of autonomous transactions but with the opposite sign.

Balance of payments deficits and surpluses

A balance of payments deficit or surplus is determined by the net position of autonomous transactions, which influences how a country manages its international finances.

Defining deficits and surpluses

• Balance of payments deficit - Occurs when the sum of autonomous transactions is negative, requiring the central bank to use foreign exchange reserves or borrow to finance the shortfall.
• Balance of payments surplus - Occurs when the sum of autonomous transactions is positive, leading to an increase in the central bank's foreign exchange reserves or official lending to other countries.

Official reserves are treated as assets held outside the economy. Countries with limited reserves may need to borrow officially if facing a deficit, while those with ample reserves can lend abroad during surpluses.

Two worked examples

The table below runs the same identity through a deficit year and a surplus year, using the same starting stock of $690 billion in official reserves in each case.

The signs on the reserves row are the part students most often get the wrong way round. Because official reserves are treated as assets held outside the economy, a fall in reserves is recorded with a plus sign (that money left the central bank and entered the economy) and a rise in reserves with a minus sign. In the deficit case the autonomous transactions sum to -$50 billion, so the central bank runs its reserves down by $50 billion and the resulting entry of +$50 billion brings the total to zero. In the surplus case the autonomous total is +$21 billion, reserves rise by $21 billion, and the entry of -$21 billion does the same job in reverse.

Components of the balance of payments accounts

The balance of payments is divided into three main accounts, each capturing different types of international transactions.

The three main accounts and their components

Each account is built from numbered items, and the numbering makes the identity easy to trace: the three account balances are items (5), (8) and (12).

The financial account also records net deposits and loans, so it tracks inflows and outflows related to investments and reserves alike. Items (5), (8), (9) and (10) are the autonomous transactions, while item (11) is the accommodating one: the central bank changes its official reserves by whatever amount is needed to offset the autonomous total. The accounts must therefore satisfy CA + KA + FA = 0, which in item numbers is (5) + (8) + (12) = 0. Where the recorded figures do not sum to zero, item (13) is added with the opposite sign to force the balance.

Errors and omissions in the balance of payments

Due to challenges in data collection, the balance of payments may not naturally sum to zero, requiring an adjustment entry.

Role and implications of errors and omissions

The errors and omissions entry is added to force the accounts to balance, with the same magnitude as any discrepancy but the opposite sign.

Large entries can signal issues such as:

• Illicit trade that is not officially recorded
• Underreported income held offshore
• Capital flight, where funds are moved abroad unofficially to avoid regulations or instability