Edwin Mansfield was a research pioneer into the economics of R and D and technological change. As appreciation and remembrance for his scholarly contributions, eminent scholars have contributed original papers for this edited volume. The authors have followed the 'Mansfieldian' approach of...

A well-developed theoretical literature — dating back at least to Nordhaus (1969) — has analyzed optimal patent policy design. We re-present the core trade-off of the Nordhaus model and highlight an empirical question which emerges from the Nordhaus framework as a key input into optimal...

This paper develops a theory of promotion based on evaluations by the already promoted. The already promoted show some favoritism toward candidates for promotion with similar beliefs, just as beetles are more prone to eat the eggs of other species. With such egg-eating bias, false beliefs may...

Global climate change and other environmental challenges require the development of new energy technologies with lower emissions. In the near-term, R&D investments, either by government or the private sector, can bring down the costs of these lower emission technologies. However, the results of...

The identification of age, cohort (vintage), and period (year) effects in a panel of individuals or other units is an old problem in the social sciences, but one that has not been much studied in the context of measuring researcher productivity. In the context of a semi-parametric model of...

Is public R&D spending complementary and thus "additional" to private R&D spending, or does it substitute for and tend to "crowd out" private R&D? Conflicting answers are given to this question. We survey the body of available economectric evidence accumulated over the past 35 years. A framework...

Endogene Sunk Costs und die Kostenstruktur -- Endogene Sunk Costs in einem „Love of Variety“ Modell -- Endogene Sunk Costs in einem „Ideal Variety“ Modell -- Anwendungen der Modelle mit endogenen Sunk Costs -- Schlussbemerkungen.

The book investigates the interplay of brand equity and technological assets at the corporate level. In a grounded theory approach it develops a model of how companies in technology intensive industries can improve the appropriation of the returns of their intangible technological assets with...

Fehlschlagende Projekte - insbesondere im Umfeld von Forschung und Entwicklung - werden häufig erst wesentlich später abgebrochen, als eine rationale, ökonomische Betrachtung empfehlen würde. Durch solche verspäteten Abbrüche entstehen Unternehmen jedoch hohe Effizienz- und...