International Currency Exchange Rates & Monetary Policy Considerations

International currency exchange rates are a mechanism for determining the relative value of one currency against another. Rates are set by the forces of supply and demand. Market participants negotiate an agreed value at which the exchange takes place. There is no one centralized market place for exchange rates but the majority of transactions occur on the Interbank market between the participants who negotiate the agreed price. Exchange rates are essential for maintaining a workable framework for all matters of international trade and commerce. This article will examine the role of exchange rates and how they can influence economic and planning decisions.

Currency exchange rates affect foreign trade. International exchange rates allow countries to determine the relative cost of goods for sale. When one countries exchange rate rises or falls against another, it can create a shift in the way trade and commerce is conducted. Manufacturers and exporters price the cost of their goods in their base unit of currency. If the exchange rate appreciates to a considerable extent then it makes the cost of goods more expensive to the foreign purchaser. This can result in a reallocation of resources as demand for the goods shift to a comparatively cheaper supplier.

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Banks and Monetary Policy: the Mechanics of Interest Rates Setting

We hear a lot about interest rates, and not only in my professional field of expertise. Interest rates are everywhere to be found in our daily lives: credit card interest, interest on deposits, car loan interest, personal loan interest, treasury bond interest. The other day I received a spam e-mail that said: “Need new socks ? Apply for our Family Loan – competitive interest rates”. Since I am single and own approximately fifty pairs of socks – they seem to be the preferred Christmas present in my household – I decided not to push the ‘Click Here’ button. But just what are the mechanics of interest rate setting? Who decides which interest rate to charge to whom – and how?

Paul Volcker, while chairman of the Board of Governors of the Federal Reserve System (1979-87), was often called the second most powerful person in the United States. Volcker triggered the “double-dip” recessions of 1979-80 and 1981-82, vanquishing the double-digit inflation of 1979-80 and bringing the unemployment rate into double digits for the first time since 1940. Volcker then declared victory over inflation and piloted the economy through its long 1980s recovery, bringing unemployment below 5.5 percent, half a point lower than in the 1978-79 boom and helping Ronald Reagan convert the American people to Reaganomics. Volcker was powerful because he was making monetary policy. Central banks are powerful everywhere for the same reason, although few are as independent of their governments as the Fed is of Congress and the White House. Central bank actions are the most important government policies affecting economic activity from quarter to quarter or year to year.

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Uncertainty and monetary policy rules in the United States

“Uncertainty is not just an important feature of the monetary policy landscape; it is the defining characteristic of that landscape” (Greenspan 2003).

Uncertainty is a central issue in monetary policy, as the quote from Alan Greenspan above illustrates. Empirical models, however, rarely take account of this, effectively assuming that policymakers ignore uncertainty. The evident focus of policymakers on uncertainty suggests that this assumption is invalid and therefore that empirical models of monetary policy must account for uncertainty. This article considers the effects of uncertainty about the true state of the economy on monetary policy, estimating a monetary policy rule that allows for this.

Our empirical model combines elements of Svensson’s (1997) model of inflation forecast targeting with models drawn from the theoretical literature on optimal monetary policy when there is uncertainty about the true state of the economy, most prominently Svensson and Woodford (2003, 2004) and Swanson (2004). In existing models of monetary policy under certainty, monetary policy affects inflation and the output gap directly, so it is optimal for policymakers to use these variables in forming monetary policy. This is the basis for the Taylor rule (Taylor 1993) model of monetary policy and its subsequent refinements (e.g., Woodford 2003).

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