This paper analyses the potentially defensive behaviour of patent-race winners and the ensuing effect on aggregate R&D effort. We propose a quality-ladder model where leaders strategically acquire a technology advantage and are able to innovate. In this context, product-market regulation, by...

In this note we reconsider the paper of Brod and Shivakumar (1999), published in the Journal of Industrial Economics, who analyze a two- stage model in which the firms compete in two dimensions and examine the effect of semi-collusion when the non-production activity is R&D. They shed light on...

Under a simple Cournot model with vertical relations, when downstream firms engage in process R&D, the profits of input suppliers for which upstream competition exists may be larger than those in which each input supplier has a bilateral monopoly relation with its buyer (downstream firm). This...

Non-R&D innovation is a common economic phenomenon, though R&D has been the central focus of policy making and scholarly research in the field of innovation. An analysis of the third European Community Innovation Survey (CIS-3) results for 15 countries finds that almost half of innovative...

Using a simple but general two-stage framework, this paper identifies the circumstances under which increasing competition leads to more cost-reducing investments. The framework can, for instance, capture increasing substitutability for different types of oligopoly models or changes from Cournot...

Also published as Working Paper Ikerlanak 2003-08

This paper analyses the potentially defensive behaviour of patent race winners and its effect on aggregate R&D effort. It proposes a quality-ladders model that endogenously determines leaders technology advantages and who innovates. Product market regulation can have either a positive or a...

In the paper the impact of R&D cooperation on prices in experimental duopoly markets is examined.As a theoretical benchmark for the experiment, a two-stage duopoly model with an R&D stage with technological spillovers and a pricing stage is used.For two scenarios of technological spillovers (no...

The precompetitive R&D literature has viewed cooperative and noncooperative R&D as substitutes. In this paper a more realistic approach is taken, where both cooperative and noncooperative R&D are performed in parallel. In the first stage firms determine the optimal investments in both types of...

We study and endogenous growth model where a profit-motivated R&D sector coexists with the introduction of free blueprints invented by philanthropists. These goods are priced at marginal cost, contrary to proprietary ones, which are produced by a monopoly owned by the inventor. We show that...