At a macroeconomic level, infrastructure and productivity are positively correlated in the United States and other countries. However, it remains unclear whether this correlation reflects causation, and if so, whether causation runs from infrastructure to productivity, or the reverse. This paper...

This paper presents a comparative study of the level of unit labor costs in the manufacturing sectors of several countries. The paper begins by surveying earlier estimates of relative productivity and unit labor cost levels and evaluating the various methodologies that have been used in previous...

Productivity rises in booms and falls in recessions. There are four main explanations for procyclical productivity: (i) procyclical technology shocks, (ii) widespread imperfect competition and increasing returns, (iii) variable utilization of inputs over the cycle, and (iv) resource...

Explanations of procyclical productivity playa key role in a variety of business-cycle models. Most of these models, however, explain this procyclicaIity within a representative-firm paradigm. This procedure is misleading. We decompose aggregate productivity changes into several terms, each of...

Most growth models assume capital is homogeneous. This contradicts intuition and empirical evidence that the majority of technology is embodied in the capital stock. Classic papers from the late 1950's and 1960's show that non-optimization models display the same asymptotic growth rates whether...

We provide empirical evidence that a positive shock to technology drives up per capita hours worked, consumption, investment, average productivity and output . This evidence contrasts sharply with the results reported in a large and growing literature that argues, on the basis of aggregate data,...

Most macroeconomic models imply that faster output growth tends to lower a country's trade balance by raising its imports with little change to its exports. Krugman (1989) proposed a model in which countries grow by producing new varieties of goods. In his model, faster-growing countries are...

While information technologies (IT) are credited with the recent acceleration in productivity in the United States, many other industrial countries have not experienced a pickup in productivity growth. To explain this productivity divergence, we use panel data from 1992 to 1999 for 13 industrial...

a speech at the C. Peter McColough Roundtable Series on International Economics, Council on Foreign Relations, New York, New York, January 19, 2005, and at the C. Peter McColough Roundtable Series on International Economics, Council on Foreign Relations, New York, New York, on January 19, 2005