In this paper we present two general results on the existence of a discrete zero point of a function from the n-dimensional integer lattice Zn to the n-dimensional Euclidean space Rn. Under two different boundary conditions, we give a constructive proof using a combinatorial argument based on a...

This paper presents an equation of the dynamic path of prices in a monopolistically competitive market in which firms sell to both old and new customers. Both types are able to search for the lowest price, given search costs, where the expected number of searches is given by the inverse of the...

In the present paper an empirical analysis will point out that government debt as a percentage of GDP has a negative impact (among others) on banking profitability. This impact will be even worse when this debt as a percentage of GDP exceeds a certain critical level. The sample covers during the...

U.S. multinational firms hold significantly more cash than domestic firms. I study this cash differential using a dynamic model featuring corporate physical and intangible investment, cross-border decisions, and financial policies. I find that the cash differential diminishes by 42% if...

A number of authors have attemted to test whether the U.S. economy is in a determinate or an indeterminate equilibrium. We argue that to answer this question, one must be impose a priori restrictions on lag length that cannot be tested. We provide examples of two economic models. Model 1...

Keynes' mathematical Treatise addresses what some call 'radical uncertainty', which he thought endemic in world affairs and whose appreciation underpinned much of his later work. In contrast, the mainstream view in economics, as elsewhere, has been that even if radical uncertainty exists, either...

Keynes' mathematical Treatise addresses what some call "radical uncertainty", which he thought endemic in world affairs and whose appreciation underpinned much of his later work. In contrast, the mainstream view in economics, as elsewhere, has been that even if radical uncertainty exists, either...

We show how frictions and continuous transfers jointly affect equilibria in a model of matching in trading networks. Our model incorporates distortionary frictions such as transaction taxes, bargaining costs, and incomplete markets. When contracts are fully substitutable for firms, competitive...

We revisit recent evidence on how monetary policy affects output and prices in the U.S. and in the euro area. The response patterns to a shift in monetary policy are similar in most respects, but differ noticeably as to the composition of output changes. In the euro area investment is the...