Zvi Griliches – författare

"An essential reference for specialists in the economics of technological change."--D. G. McFertridge, Canadian Journal of Economics

Is the fall in overall productivity growth in the United States and other developed countries related to the rising share of the service sectors in the economy? Since services represent well over half of the U.S. gross national product, it is also important to ask whether these sectors have had a slow rate of growth, as this would act as a major drag on the productivity growth of the overall economy and on its competitive performance. In this timely volume, leading experts from government and academia argue that faulty statistics have prevented a clear understanding of these issues.

Zvi Griliches was a modern master of empirical economics. In this short book, he recounts what he and others have learned about the sources of economic growth. This book conveys the way he tackled research problems. For Griliches, economic theorizing without measurement is merely the fashioning of parables, but measurement without theory is blind. Judgment enables one to strike the right balance.The book begins with economists' first attempts to measure productivity growth systematically in the 1930s. In the mid-1950s these efforts culminated in a startling puzzle. The growth of measured inputs like labor and capital explained only a fraction of the growth of national output. Economists called this phenomenon "efficiency" or "technical change" or "the residual." However, Griliches observes that the most accurate name was a "measure of our ignorance." What explained the rest of economic growth quickly became one of the most important questions in economics.Over the next thirty years, Griliches and his colleagues and students looked for various components of the residual in education (the formation of human capital), investment (the formation of physical capital), and research and development. In 1973, after the oil price shocks, productivity growth slowed and the residual almost disappeared. Since the shocks were a short-term phenomenon, they could not account for the slowdown. A main focus of this book is therefore the puzzle of the productivity slowdown and how to date it and how to explain it.

This book focuses on the empirical analysis of productivity in services at the firm level. Productivity studies are still scarce in services, especially in view of the major role of the services sector in modern developed economies and the increasing concern about its performance. The services industries studied in this volume are quite diverse, with a strong representation of financial services. All analyses are performed on the microlevel, being based on cross-sectional or panel data for samples of firms of widely varying sizes. They focus on a variety of topics ranging from comparing the efficiency of different categories of service firms or exploring the impact of mergers and deregulation on productivity performance to assessing the magnitude of returns to scale and scope or investigating the properties of different parametric or nonparametric methods to estimate cost and production functions.

Zvi Griliches has made many seminal contributions to econometrics during the course of a long and distinguished career. His work has focused primarily on the economics of technological change and the econometric problems that arise in trying to study it. This major collection presents Professor Griliches's most important essays and papers on method, applied econometrics and specification problems. It reflects his interests in data-instigated contributions to econometric methodology, developments in and exposition of specification analysis, statistical aggregation, distributed lag models, sample selection bias and measurement error and other unobservable variance component models. These methods are applied to important substantive questions such as the estimation of the returns to education, the measurement of quality change, and productivity and economies of scale.Practicing Econometrics provides an essential reference source to the work of one of the most influential econometricians of the late 20th century.