Competition, R&D Activities and Endogenous Growth

A prediction of the endogenous growth models with quality ladders is that there exists a negative relation between growth and the degree of market competition. The aim of this article is to shed light on the relation between competition and growth when horizontal and vertical innovations can simultaneously occur by adopting the structure of the patent race model; we show the way in which the toughness of competition influences the firms’ incentives to invest in the two R&D activities; in particular, the presence of vertical and horizontal differentiation can determine a non monotonic long run relationship between competition and growth.Growth; Competition; Vertical and Horizontal Innovations

Location in a vertically differentiated industry

We analyze a model of a vertically differentiated duopoly with two regions. These two locations differ for the market size or for the distribution of the willingness to pay for quality of their consumers. Firms sequentially choose to settle in one region and then simultaneously compete in prices, selling their products both on the local market and on the foreigner one. We show that the decision whether to agglomerate or not crucially depends on the extent of regions’ asymmetries, but, counter intuitively, there are parametric configurations in which the model predicts that the leader (the first firm choosing location) settles either in the poorer or in the smaller region, leaving the other one to the follower.. Welfare analysis completes the paper.Regions; Vertical Differentiation; Oligopoly

Adoption and diffusion of cost reducing innovations : Cournot competition in duopoly

This note analyses the adoption and diffusion of innovations in a horizontally differentiated Cournot duopoly in which firms have to choose the dates for adopting a cost-reducing new technology like in Reinganum (1981a). We prove that product differentiation crucially matters in the diffusion pattern of the innovation and in the comparison between the adoption timing in the decentralized economy Vs the social optimum .Adoption; diffusion; differentiated duopoly

Location in a vertically differentiated industry

We analyze a two-stage game in a vertically differentiated duopoly with two regions which can differ for the willingness to pay of their consumers or for the market size; firms sequentially choose to settle in one region and then simultaneously compete in prices, selling their products both on the local market and on the foreigner one by exporting them at a fixed cost. We study how strategic interaction influences firms’ location choices and we show that the decision whether to agglomerate or not crucially depends on the extent of regions’ asymmetries, but, counter intuitively, there are parametric regions in which the model predicts that the leader (the first firm choosing location) settles either in the poorer or in the smaller region, leaving the other one to the follower. Welfare analysis completes the paper

Training and Product Quality in Unionized Oligopolies

In this paper we analyze the private and public incentives towards skill acquisition when the skill level of workers determines the quality level of goods, and both labor and product markets are non competitive. We delve into the mechanisms that determine the equilibrium skill acquisition outcomes and show that both "pure" (training set by either firms or unions only) and "mixed" (training set by firms and unions) training scenarios may emerge at equilibrium. We show that firms have generally greater training incentives than unions, resulting in a higher product quality. In line with empirical evidence, we also find that the wage differential between high-skill workers and low-skill workers is lower when the training levels of the workforce are selected by unions than by firms. Finally, we analyze the optimal public training skill levels and demonstrate that both unions and firms under-invest in training in comparison with the social optimum. Yet, in this case the skill premium is the lowest

R&D Policy and Schumpeterian Growth: Theory and Evidence

In recent years, a large body of empirical research has investigated whether the predictions of secondgeneration growth models are consistent with actual data. This strand of literature has focused on the longrun properties of these models by using productivity and innovation data but has not directly assessed the effectiveness of R&D policy in promoting innovation and economic growth. In the present paper, we fill this gap in the literature by providing a unified growth setting that is empirically tested with US manufacturing industry data. Our analysis shows that R&D policy has a persistent, if not permanent, impact on the rate of economic growth and that the economy rapidly adjusts to policy changes. The impact of R&D tax credits on economic growth appears to be long lasting and statistically robust. Conversely, more generous R&D subsidies are associated with an increase in the rate of economic growth in the short run only, indicating that, at best, this policy instrument has only temporary effects. Overall, the evidence regarding the effectiveness of R&D policy provides more support for fully endogenous growth theory than for semi-endogenous growth theory

Training and Product Quality in Unionized Oligopolies

In this paper we analyse the private and public incentives towards skill acquisition when the skill level of workers determines the quality level of goods, and both labour and product markets are non-competitive. We show that both ‘pure’ (set by either firms or unions only) and ‘mixed’ (set by firms and unions) training scenarios may emerge at equilibrium. We show that firms have generally greater training incentives than unions, resulting in a higher product quality. Our welfare analysis shows that both unions and firms underinvest in training in comparison with the social optimum

Multiproduct Multinationals and the Quality of Innovation

This research sheds light on the role of product scope on the innovation activity of multinational multi-product firms. We use patent citation data to break down innovation into two types by measuring the degree to which innovation performed by firms is fundamental and the extent to which the output of the R&D can be spread across different product lines. We focus on two features in multinational production: (i) fundamental innovation is geographically more difficult to transfer abroad to foreign production sites, (ii) learning spillovers can occur from international operations. The results reveal that the second effect is more likely to dominate when a firm is active in more product lines. We argue that a more diversified portfolio of products increases a firm’s scope of learning from international operations, thereby enhancing its ability to engage in more fundamental research. In contrast, firms with less product lines that geographically separate production from innovation shift the innovation activities towards more specialized types of innovation

Quality, Distance and Trade: a Strategic Approach

This paper contributes to the literature on distance and quality by identifying a firm-based force contributing to explain the observed increase of the quality of shipped goods with the distance of their destination market. This force originates from the influence of distance on firms' strategic behavior when the quality level of goods is a choice variable for them, and complements the ones already proposed in the literature. Our approach differs from the extant literature because it does not rely on technology or preference/income differentials to identify the determinants and drivers of trade flows. Moreover, it allows to clearly disentangle between the price setting and quality choice of firms. We find that distance has an unambiguously positive effect on the average quality of traded goods. Our results suit the empirical evidence on distance and quality and contribute to the analysis of the determinants of firms' trade performance

Multi-Product Firms, R&D, and Growth

Multi-product firms dominate production activity in the global economy. There is widespread evidence showing that large corporations improve their efficiency by increasing the scale of their operations; this objective can be realized either by consistently investing in R&D or by expanding the product range. In this paper, we explore the implications of this fact by embedding multi-product firms in a General Equilibrium model of endogenous growth. We analyze an economy with oligopolistic firms that carry out in-house R&D programs in order to achieve cost-reducing innovations. Market structure is endogenous in the model and is jointly determined by the number of firms and the number of product varieties per firm. Both economies of scope and scale characterize the economic environment. We show that the market equilibrium involves too many firms (too much inter-firm diversity) and too few products per firm (too little intra-firm diversity); moreover, we find out that the total number of products and productivity growth are inefficiently low under laissez-faire. The nature of these distortions is discussed in detail