This paper examines the relationship between the characteristics of firm knowledge in terms of capital, diversity and relatedness, and productivity. Panel data regression models suggest that unlike knowledge diversity, knowledge capital and knowledge relatedness explain a substantial share of...

This thesis proposes to determine the effect of the Health insurance reform in Tunisia on pharmaceutical demand and supply. For this purpose, we present the main characteristics of the Tunisian pharmaceutical market, with describing the objectives and modalities of implementation of Health...

This paper analyses the factors that determine entry into the Swedish pharmaceuticals market. The analysis is based on panel data for 22 different substances covering the years 1972 to 1996. The results show that profit opportunities in a particular market have a positive impact on entry. In...

This paper introduces dynamics in the R&D to innovation and innovation to productivity relationships, which have mostly been estimated on cross-sectional data. It considers four nonlinear dynamic simultaneous equations models that include individual effects and idiosyncratic errors correlated...

This paper examines empirically the relationship between innovation and market structure within a simultaneous framework at the industry level of aggregation. We use a model in which R&D affects both, demand and cost conditions. An optimization process leads to optimal industry R&D expenditure...

This paper incorporates the cost of adjustment between observed and optimal leverage in explaining the variation in firm?s equity or bank-debt financing investments. Using a dynamic adjustment approach identifies the determinants to capital structure between different financial systems. In...

This paper investigates the determinants of EPO (European Patent Office) patent applications per capita using a panel of 22 OECD countries with data measured as five-year averages for the period 1980-1999. The patent production function is specified as a partial adjustment model and is estimated...

Process innovation is an important part of firms' innovation activities and supposed to significantly contribute to positive returns from innovation. Measuring process innovation output at the firm level is still in its infancy, however. This paper reports empirical evidence on measures of...

This paper proposes a method to implement maximum likelihood estimation of the dynamic panel data type 2 and 3 tobit models. The likelihood function involves a two-dimensional indefinite integral evaluated using "two-step" Gauss-Hermite quadrature. A Monte Carlo study shows that the quadrature...

This paper tests for the importance of cash flow on investment in fixed capital and R&D using firm-level panel data in two countries between 1985 and 1994. For German firms, cash flow is not informative in simple econometric models of fixed investment or R&D. In identical specifications for...