A Theory of North-South Trade and Globalization

This paper develops a dynamic general equilibrium model of North-South trade. Northern firms devote resources to innovative R&D to discover higher quality products and Southern firms devote resources to imitative R&D to copy state-of-the-art quality products. Both innovation and imitation rates are endogenously determined as well as the degree of wage inequality between Northern and Southern workers. The steady-state effects of globalization and stronger protection of intellectual property are analyzedEconomic Growth, North-South Trade, Globalization

Labor Market Challenges in Europe With Respect to the Migrant Crisis

Advocates and opponents of European refugee policy have disagreed often over the economic impact of new asylum seekers. This paper analyzes characteristic qualities of the European labor market and how they relate to the recent changes in migration from the Middle East and Africa. Within is analysis of the impacts to gross domestic product, unemployment, and the welfare state that the arrival of additional persons to the low-wage market will bring. The paper also argues that a plan to distribute asylum seekers across the European Union is an equitable solution to the issue

Intel Economics

This paper presents a model to explain why both industry leaders and follower firms often invest in R&D and explores the welfare implications of these R&D investment choices. Regardless of initial conditions, the equilibrium path in this model involves gradually convergence to a balanced growth path and R&D subsidies have no effect on the balanced growth rate. Nevertheless, it is always optimal for the government to intervene by subsidizing the R&D expenditures of industry leaders and taxing the R&D expenditures of follower firms. Without government intervention, market forces generate too much creative destruction

The Long-Run Growth Effects of R&D Subsidies

This paper presents a model of R&D-driven growth without scale effects where firms can engage in both horizontal and vertical R&D activities. Unlike in earlier models of R&D-driven growth without scale effects by Jones (1995), Segerstrom (1998) and Young (1998), R&D subsidies can have long-run growth effects. Indeed, for a wide range of parameter values, a permanent increase in the R&D subsidy rate decreases the long-run rate of economic growth. An intuitive explanation for why R&D subsidies sometimes retard growth and sometimes promote growth is provided

The Growth and Welfare Effects of International Mass Migration

We analyse the effects of immigration quotas on growth and discounted welfare in a North-South version of the quality ladders growth model. Immigration quotas in the North increase the growth rate of utility for all consumers. However, they lower the static utility level and discounted welfare of Northern workers. Also the discounted welfare of asset owners drops. Hence, unlike in the static migration model where the representative agent in the host country benefits from immigration, in our dynamic migration model, the representative agent loses despite a positive growth effect of immigration. In general, the winners of a liberal immigration policy in the North are the immigrants and the remaining workers in the south.migration; growth; welfare

A Schumpeterian Model of Protection and Relative Wages

This paper presents a dynamic general equilibrium model of trade between two advanced countries in which both innovation and skilled acquisition rates are endogenously determined. The model offers a North-North (as opposed to a North-South) trade explanation for increasing relative wage inequality. A global reduction in trade barriers increases R&D investment and accelerates the pace of technological progress. It also reduces the relative wage of unskilled workers and results in skill upgrading, if and only if R&D is the skill-intensive activity relative to manufacturing of final products. Trade liberalization does not affect domestic relative prices in either of the two countries

The Impact of Trade Liberalization on Industrial Productivity

This paper calls into question the currently most influential model of international trade. An empirical finding by Trefler (2004, AER) and others that industrial productivity increases more strongly in liberalized industries than in non-liberalized industries has been widely accepted as evidence for the Melitz (2003, Econometrica) model. We show that a multi-industry version of the Melitz model does not predict this relationship. Instead, it predicts the opposite relationship that industrial productivity increases more strongly in non-liberalized industries than in liberalized industries

A Schumpeterian Growth Model with Heterogenous Firms

A common assumption in the Schumpeterian growth literature is that the innovation size is constant and identical across industries. This is in contrast with the empirical evidence which shows that: (i) the innovation size is far from being identical across industries; and (ii) the size distribution of profit returns from innovation is highly skewed toward the low value side, with a long tail on the high value side. In the present paper, we develop a Schumpeterian growth model that is consistent with this evidence. In particular, we assume that when a firm innovates, the size of its quality improvement is the result of a random draw from a Pareto distribution. This enables us to extend the class of quality-ladder growth models to encompass firm heterogeneity. We study the policy implications of this new set-up numerically and find that it is optimal to heavily subsidize R&D for plausible parameter values. Although it is optimal to tax R&D for some parameter values, this case only occurs when the steady-state rate of economic growth is very low.Schumpeterian Growth, R&D, optimal policy

Trade with R&D costs to entering foreign markets

In this paper, we present a standard quality ladders endogenous growth model with one significant new assumption, that it takes time for firms to learn how to export. We show that this model without Melitz-type assumptions can account for all the evidence that the Melitz (2003) model was designed to explain plus much evidence that the Melitz model cannot account for. In particular, consistent with the empirical evidence, we find that trade liberalization leads to a higher exit rate of firms, that exporters charge higher prices for their products and that many large firms do not export