In this paper, we outline (i) why σ-convergence may not accompany β-convergence, (ii) discuss evidence of β-convergence in the United States, and (iii) use U.S. county-level data containing over 3,000 cross-sectional observations to demonstrate that σ-convergence cannot be detected at the...

Summary Starting from today’s definition of innovation indicators, this paper analyses the dynamic relationships between innovation activities (approximated by two innovation input indicators and one innovation output indicator) and per capita income in Germany for the two periods from 1850...

This empirical study aims to examine the influence of transformational leadership at the upper echelon level on radical and incremental product innovations as well as organisational performance. In particular the focus of this study is to test the augmentation hypothesis, which suggests that...

Diese Anmerkung zeigt, dass das reale Bruttoinlandsprodukt der Bundesrepublik Deutschland einem trendstationären Prozess folgt. Dabei werden sowohl ökonometrische Tests, bei denen die Trendstationarität die Alternativhypothese ist, eingesetzt als auch solche, bei denen sie die Nullhypothese...