Knowledge spillovers are a central part of knowledge accumulation. The paper focuses on spillovers that occur through the interaction between different researchers or developers that collaborate in different research projects. The paper distinguishes between project spillovers and contributors' spillovers and between direct and indirect spillovers. The paper constructs a unique data set of open...

A dynamical model of optimal economic growth is used for the comparison of catalogues of real econometric data and synthetic growth scenarios. The model is calibrated on a database of the Tokyo Institute of Technology. A special attention is paid to the aggregated data of the Japanese manufacturing industry in period 1955-1992. A description of an algorithm of modeling optimal trends in the tec...

The role of foreign direct investment and intellectual property rights in economic development is discussed widely in the literature. However, an integrating framework is missing to assess the role of FDI and IPR for agricultural development. This paper establishes a framework to assess the role of FDI and IPR for seed sector development in developing countries. The impact assessment is carried...

We use fine-grained longitudinal data of user activities in a leading enterprise software vendor’s Internet-enabled community network to explore knowledge contribution and exchange patterns among countries. We measure knowledge contribution using data on 1.8 million forum discussion threads involving more than 276,000 active users from 224 countries over the period of 2004 2010. We find that a ...

This paper develops a tractable theoretical framework for analyzing the substitutability between different advertising media, the extent of marketing spillovers in the market, the allocative efficiency of advertising spending, and the sources of total advertising productivity and sales growth. Maintaining the separability assumption between sales and production technology, the proposed methodol...

This paper demonstrates that investor irrationality can be contagious across markets. Supplementing existing studies on resale option theory, we illustrate that warrant speculation could spill over to the underlying stock market. Our findings indicate that high turnover of underlying stocks is associated with previous day’s high unexpected turnover of warrants, or previous day’s larger price de...