Summary
International finance (also referred to as international monetary economics or international macroeconomics) is the branch of financial economics broadly concerned with monetary and macroeconomic interrelations between two or more countries. International finance examines the dynamics of the global financial system, international monetary systems, balance of payments, exchange rates, foreign direct investment, and how these topics relate to international trade. Sometimes referred to as multinational finance, international finance is additionally concerned with matters of international financial management. Investors and multinational corporations must assess and manage international risks such as political risk and foreign exchange risk, including transaction exposure, economic exposure, and translation exposure. Some examples of key concepts within international finance are the Mundell–Fleming model, the optimum currency area theory, purchasing power parity, interest rate parity, and the international Fisher effect. Whereas the study of international trade makes use of mostly microeconomic concepts, international finance research investigates predominantly macroeconomic concepts. The foreign exchange and political risk dimensions of international finance largely stem from sovereign nations having the right and power to issue currencies, formulate their own economic policies, impose taxes, and regulate movement of people, goods, and capital across their borders. The idea of fiat currency was established just over a thousand years ago in China during the Yuan, Tang, Song and Ming dynasties. In the Tang Dynasty (618-907) there was a high demand for metallic currency that exceeded the supply of precious metals. The people were already familiar with the use of credit notes, and they rapidly began accepting pieces of paper or paper drafts. A shortage of coins forced these people to change from coins to notes. During the Song Dynasty (960-1276), there was a booming business in the Sichuan region that led to a shortage of copper money.
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