The home market effect (HME) is a distinguishing feature of the ?new? theory of international trade, but it is uncertain whether this effect survives if one moves beyond the simplifying setup with only two countries. We present a three -country version of the seminal model by Krugman (1980) and...

The home market effect (HME) is a distinguishing feature of the “new” theory of international trade, but it is uncertain whether this effect survives if one moves beyond the simplifying setup with only two countries. We present a three -country version of the seminal model by Krugman (1980)...

The home market effect (HME) is a distinguishing feature of the "new" theory of international trade, but it is uncertain whether this effect survives if one moves beyond the simplifying setup with only two countries. We present a three-country version of the seminal model by Krugman (1980) and...

We introduce a simple oligopolistic trade model with international transportation costs, and analyze the profitability and the social desirability of national vs. international mergers in relation to three different issues, (i) the level of trade freeness, (ii) the possibility of rent...

We develop a new general equilibrium model of trade with heterogeneous firms, variable demand elasticities and endogenously determined wages. Trade integration favors wage convergence, intensifies competition, and forces the least efficient firms to leave the market, thereby affecting aggregate...

We develop a theory of a firm in an environment with incomplete contracts. The firm’s headquarter decides on the complexity, the organization, and the global scale of its production process. Specifically, it decides: i) on the mass of symmetric intermediate inputs that are part of the value...

We develop a theory of a firm in an incomplete contracts environment which decides on its complexity, organization, and global scale. Specifically, the firm decides i) how thinly it wants to slice its production process by choosing the mass of symmetric intermediate inputs that are...

The world is replete with spatial frictions. Shipping goods across cities entails trade frictions. Commuting within cities causes urban frictions. How important are these frictions in shaping the spatial economy? We develop and quantify a novel framework to address this question at three...

This paper offers a new mechanism to explain de-industrialisation in response to a price increase of the manufactured good. In our trade model, one sector (agriculture) is perfectly competitive while the other (manufacturing) is monopolistically competitive. Both industries use skilled and...

We develop a new general equilibrium monopolistic competition model with variable demand elasticity, heterogeneous firms, and multiple asymmetric regions. Wages, productivity, consumption diversity, and markups across firms and markets are all endogenously determined and respond to trade...