this paper extends endogenous growth models through augmenting it with government budget and oil revenues as well as the effect of public investment efficiency on long run growth of private and government consumption and import for an oil producing economy. based on the extracted model, the optimal growth rate of government current expenditure (or consumption) has a positive relation with the e...

We investigate the dramatic transformation of ownership policies and ownership structure in Sweden during the postwar period. After WWII, Swedish ownership policies were guided by a socialist vision where the ultimate goal was abolition of private ownership. These policies came to an end in the early 1980s. Since then a large number of Swedish firms have been acquired by foreign owners or merge...

The economic implications of international patent harmonization have attracted little empirical scrutiny. Based on patent application and renewal data in major European countries since the early 1980s, this paper examines the empirical relationship between international patenting, R&D, and “trade flows” of patent rights across national borders. The analysis reveals a substantial patent “trade i...

This paper is a first step toward closing the analytical gap in the extensive literature on the results of interactions between public and private R&D expenditures, and their joint effects on the economy. Econometric studies in this area report a plethora of sometimes confusing and frequently contradictory estimates of the response of company financed R&D to changes in the level and nature of p...

Escherichia coli isolates were cultured from diseased Japanese quail and their environment. Of 31 E. coli isolates, 11 were cultured from heart blood of dead Japanese quail and 20 were from dead-in-shell embryos, fluff samples, and footbath and drinking water samples. All E. coli isolates were moderately positive on the Congo red binder test and 14 out of 31 isolates produced hemolysis on sheep...

We develop a model of an innovative industry to examine how information technology, by both enhancing matching efficiency and knowledge sharing, can have an ambiguous effect on the total amount of innovation. We consider a population of firms holding different knowledge expertise, and forming partnerships to conduct joint R&D. We assume that bringing together different expertise has positive va...

This study evaluates the impact of pre-discovery licensing on innovation and product market efficiency. Pre-discovery licensing is a form of R&D cooperation between firms, which accounts for more than 95% of all research collaborations. Pre-discovery licensing is pursued independently between firms, i.e., without governmental support. In contrast, in a research joint venture firms cooperate in ...

This paper develops a framework for testing discrete complementarities in innovation policy using European data on obstacles to innovation. We propose a discrete test of supermodularity in innovation policy leading to a number of inequality constraints. We apply our test to two types of innovation decisions: to innovate or not, and if so, by how much. Our results suggest a considerable amount o...

The patent is supposed to be a means to an end, that end being innovation. Whether the innovation comes from the protection the patent affords the inventor, or from the dissemination of the information of invention the patent allows, the patent is not meant to be an end in itself. This seems to be changing, the patent acquiring a strategic value increasingly independent of innovation. If this d...

Optimal patent breadth is an issue that is still being vigorously debated at both the theoretical and empirical levels. This paper analyzes optimal patent policy in the context of cumulative innovation in a model that endogenizes the patenting decisions of early innovators. In the theoretical literature on cumulative innovation, it is generally assumed that all innovations are patented. However...