Borrowing – A country is borrowing when it is buying more imports than it is selling in exports. Borrowers must be able to generate enough hard currency reserves to repay their creditors. Crises can occur if foreign investors sell their holdings of domestic assets, which can cause a loss of liquidity in the domestic economy and push the value of the domestic currency down.
Lending – A country is lending when it is selling more exports than it is buying in imports. Lenders might see inflation as reserve inflows increase. They may also lack good domestic investment opportunities, so money flows abroad, seeking better returns.