When governments levy taxes on labour income on the basis of a balanced budget rule, this rule causes a nonlinear system.Thus, multiple steady states in an economy exist, which can cause multiple movement patterns in an economy. This article deals with the existence of these multiple steady...

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...

The paper constructs a general equilibrium model model where the rate of technical progress and the distribution of R&D expenditure by heterogeneous research firms are simultaneously determined. Using the model, we explore the effects of the following policy measures on those two endogenous...

When governments levy taxes on labor income on the basis of a balanced budget rule, two steady states in an economy exist, which can cause two movement patterns, namely, indeterminacy paths and a saddle path. Many economists deal with this issue based on indivisiblelabor. On an general...

The paper develops a patent race model of firms which differ in R&D productivity. It is demon-strated that R&D subsidies generate the cleansing effect where relatively lower productivity firms drop out of the race and innovation accelerates due to expanded R&D investment by the remaining firms...