I show the equivalence between a model of financial contagion and the widely-used threshold model of global cascades proposed by Watts (2002). The model financial network comprises banks that hold risky external assets as well as interbank assets. It turns out that there is no need to construct...

The question of how to stabilize financial systems has attracted considerable attention since the global financial crisis of 2007-2009. Recently, Beal et al. (gIndividual versus systemic risk and the regulator's dilemmah, Proc Natl Acad Sci USA 108: 12647-12652, 2011) demonstrated that higher...

The problem of how to stabilize the financial system has attracted considerable attention since the global financial crisis of 2007-2009. Recently, Beal et al. (2011, gIndividual versus systemic risk and the regulatorfs dilemmah, Proc Natl Acad Sci USA 108: 12647-12652) demonstrated that higher...

This paper develops a two region model of trade to study the relationship between geographic patterns of industry and economic growth without scale effects. With transport costs, imperfect knowledge diffusion, and perfect capital mobility, firms locate production, process innovation, and product...

This paper investigates the relationship between geographic patterns of industrial activity and endogenous growth in a two region model of trade that exhibits no scale effect. The in-house process innovation of manufacturing firms drives productivity growth and is closely associated with...

This paper investigates the relationship between geographic patterns of economic activity and productivity growth in a two region model of trade and endogenous growth without scale effects. At the core of the model is the production and in-house innovation activities of manufacturing firms and,...

This paper develops a two country model to investigate the effects of national R&D subsidies on aggregate product variety and endogenous productivity growth without scale effects. In particular, monopolistically competitive firms invest in process innovation with the aim of lowering production...