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...

In this paper we propose a stochastic formulation of the materials balance condition which imposes physical constraints on production technologies. The estimation of the model involves a composed error term structure that is commonly applied in the literature on stochastic frontier analysis of...

Classical finance has undergone a major change in recent years. In our modern world, where risk becomes more complex and difficult to calculate, more sophisticated mathematical techniques and products are needed to quantify such new risks. The financial sector should have a solid structure in...