One would like to think that as the economy slows, inflationary pressures will do likewise. But we cannot always be sure they will, given the globalized commodities trading system nature of the U.S. economy. Demand-pull pressures abroad have an increasingly potent influence on our domestic economy. Traditionally, a central bank would expect slack to develop as the economy under its jurisdiction weakened, leading to less demand for most inputs and an easing of price pressures. We no longer operate in a traditional economy. Domestic inflation developments have become increasingly less sensitive to domestic measures of slack. In an open, globalized economy, capacity utilization and inflation pressures need to be measured, or at a minimum, understood in their global context.

You cannot think in a purely domestic context about the pricing of oil or steel or soybeans or pulp or shoes or clothing or even what I consider to be one of lifes essentials, beer, because innovations in transportation and communications technology have all but eliminated national borders for almost any product for which trade barriers were negotiated away during the 1980s and 90s. More commodity training books vexing for economists and econometric modelers, the information technology revolution and the spread of the Internet have blurred the once-clear distinction between easy-to-trade goods and difficult-to-trade services.

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