We present new indicators of U.S. technological change for the period 1909-49 based on information in the Library of Congress’ catalogue. We use these indicators to estimate the connections between technological change and economic activity, and to investigate the relationship between...

Difficulties in sorting out the empirical relationship between technical change and employment is attributable, at least in part, to the shortcomings associated with traditional measures of the former. In this paper, we use new indicators of technical change that we believe resolve many issues...

Are uncertainty shocks an important source of post WWII business cycle fluctuations? The evidence we present in this paper suggests they are. Using both the traditional measure of uncertainty – the stock market volatility index – and a new one - based on the number of New York Times’...

New indicators, based on technology titles, are used to measure the impact of innovative activity on the U.S. labor market between 1909 and 1949. We find positive technology shocks raised productivity, employment, vacancies and labor turnover and lowered unemployment. Moreover, innovations in...

Are uncertainty shocks an important source of post WWII business cycle fluctuations? The evidence we present in this paper suggests they are. Using both the traditional measure of uncertainty – the stock market volatility index – and a new one - based on the number of New York Times’...

New indicators of technical change in the field of computers based on new titles held by Canadian libraries are presented, and are used to demonstrate that a positive computer technology shock in Canada increases hours worked, output, and productivity in the short run. These measures indicate,...

New indications of managerial innovations are created and then used to show that changes in organizational technologies are an important source of economic growth. Specifically, the analysis demonstrates that, first, in response to a positive managerial technology shock, output, productivity and...

Existing indicators of technical change are plagued by shortcomings. I present here new measures based on books published in the field of technology that resolve many of these problems and use them to identify the impact of technology shocks on economic activity. They are positively linked to...

We use a panel of survey responses linked to administrative data in Germany to measure the depreciation of skills while workers are unemployed. Both the reemployment hazard rate and reemployment earnings steadily fall with unemployment duration, and indicators of depression and loneliness rise...