The document summarizes key concepts related to a country's balance of payments. It discusses the current account balance and capital/financial account. For the US in 2006, it showed a current account deficit of $811.5 billion due to a large trade deficit, though this was offset by a capital/financial account surplus of $811.5 billion from foreign investment in the US. Maintaining a current account deficit is not necessarily problematic if funds are used for investment rather than consumption. Global savings and interest rates also impact current account balances.