the international monetary system - an introduction Flashcards
what is the international monetary system?
it is a set of rules conventions and institutions that govern the conduct of monetary policies, their coordination, exchange rates and the provision of international liquidity
what are international currencies/
currencies that are widely used beyond national borders and have an international status are typically called international currencies
what are the determinents of international currency status?
network externalities
financial markets development
credibility
how does an international currency derive its value?
it derives its value because others are using it
how do the transaction costs vary with the size of the economy?
krugman showed that there are economies of scale in foreign exchange markets. transaction costs in foreign exchange markets decrease in the volume of transactions. hence only the currency of a large country with high trading volume can serve as a medium of exchange internationally.
what is krugmans definition of the structure of payments?
the payment flows between the countries
what is the structure of exchange?
the actual transactions in currency markets
what is the framework to show network externalites?
three countries
trade is bilaterally balanced ( exports are equal to imports)
assume that exchange rates are all equal to 1 so that all exports and imports are denominated in arbitrary units
key assumption : transaction costs in foreign exchange markets are decreasing in the volume traded
why mignt network externalities arise?
assume the structure of payments is such that the payments between the US and Mexico are equal to 100 and between the US AND THAILAND is also equal to 100. the payments between Mexico and thailand are equal to 10. as transaction costs decrease with volume, in equilibrium it is more convenient for Mexico and thailand to use dollars for their bilateral trade. the US dollar becomes the vehicle currency
what are the key implications of network externalities?
only the currency of a country that is important in world payments ( Share of GDP, trade volume) can serve as an international medium of exchange.
once an exchange structure is established it is difficult to shift it for small changes in the structure of payments
unless the structure of payments changes enough to make the current structure of exchange unprofitable leading to a shift from equilibrium to another
history matters and habits change slowly so even if a countries trade share declines, the international currency role can persist over time
what are the determinents of financial markets development>
open and free from capital controls
deep and liquid
what are the determinents of the credibility?
the exhcnage rate needs to be stable ( low volatility)
exchange rate depreciation makes holding the currency unattractive and discourage its use
low inflation records
what are the benefits of an international currency>
reudced transactions costs
international seigniorage
macroeconomic flexibility
political leverage
reputations
what are the risks of international currency?
currency appreciation
external constraint
policy responsibility
explain the benefit of reduced transaction costs for an international currency?
ordinary citizens are able to use their own money when travelling abroad.
firms can sell goods abroad in their home currency ( elimination of exchange rate risks)
domestic banks and financial institutions have a competitive advantage in dealing with currency and they can expand business abroad at a lower cost