The paper provides empirical evidence for the causal impact of broadband Internet on firms' labour productivity and realised process and product innovations. The analysis refers to the early phase of DSL expansion in Germany from 2001 to 2003, when roughly 60 percent of the German firms already...

This paper studies the impact of the adoption of ICT on the economic performance at the firm level, considering explicitly the interaction of adopting firms within the intermediate input market in Germany. The paper identifies and quantifies the importance of adoption externalities and knowledge...

Motivated by Manski and Tamer (2002) and especially their partial identification analysis of the regression model where one covariate is only interval-measured, we offer several contributions. Manski and Tamer (2002) propose two estimation approaches in this context, focussing on general...

Motivated by Manski and Tamer (2002) and especially their partial identification analysis of the regression model where one covariate is only interval-measured, we present two extensions. Manski and Tamer (2002) propose two estimation approaches in this context, focussing on general results. The...

This paper analyzes several important aspects of price behavior using disaggregated weekly data on prices of supermarket products in Colombia between 1991 and 1994. The analysis shows that despite high and persistent rates of inflation in the economy, price quotations persist on average for two...

Motivated by Manski and Tamer (2002) and especially their partial identification anal- ysis of the regression model where one covariate is only interval-measured, we offer several contributions. Manski and Tamer (2002) propose two estimation approaches in this context, focussing on general...

The paper provides empirical evidence for the causal impact of broadband Internet on the economic performance of German firms. Performance is measured in terms of labour productivity and realised process and product innovations. The analysis refers to the early phase of DSL expansion in Germany...

This paper analyzes several important aspects of price behavior using disaggregated weekly data on prices of supermarket products in Colombia between 1991 and 1994. The analysis shows that despite hight and persistent rates of inflation in the economy, price quotations persist on average for two...

In explaining economic phenomena, economic analysis concentrates on selected influences and fixes the host of other factors under a ceteris paribus clause. This view, which goes back to Alfred Marshall (1842-1924), is developed in the first part of the book. Aggregation is viewed as a particular...

Life annuities provide a guaranteed income for the remainder of the recipient’s lifetime, and therefore, annuitization presents an important option when choosing an adequate investment strategy for the retirement ages. While there are numerous research articles studying annuities from a...