None of the known macroeconomic theories are adequate to understand what to do in a global crisis like the 2020 Global Pandemic. Rational Expectations and monetarism cannot even ex-plain how is that a global crisis like this happens. The IS-LM model was designed to manage business cycles, but...

We introduce a new approach to showing existence of equilibrium in models of economies with unbounded short sales. Inspired by the pioneering works of Hart (1974) on asset market models, Grandmont (1977) on temporary economic equilibrium, and of Werner (1987) on general equilibrium exchange...

We consider an overlapping generations model à la Diamond (1965) with two additional ingredients: altruism and an asset (or land) bringing non-stationary positive dividends (or fruits). We study the global dynamics of capital stocks and asset values as well as the interplay between them. Asset...

The thesis of this paper is mathematical formulation of the laws of Economics with application of the principle of Least Action of classical mechanics. This paper is proposed as the rigorous mathematical approach to Economics provided by the fundamental principle of the physical science – the...

This work extends the Sard-Smale Theorem to maps between convex subsets of Banach spaces that may have an empty interior.

This work extends the Sard-Smale Theorem to maps between convex subsets of Banach spaces that may have an empty interior.

Two major trends in the world economy are international migration and environmental degradation. The object of the paper is to analyze the connection between these two trends, which have generally been analyzed in isolation. Here we represent a world economy in which the exploitation of natural...

I develop a search-and-bargaining model of endogenous intermediation in over-the-counter markets. Unlike the existing work, my model allows for rich investor heterogeneity in three simultaneous dimensions: preferences, inventories, and meeting rates. By comparing trading-volume patterns that...

I develop a search-and-bargaining model of liquidity provision in over-the-counter markets where investors differ in their search intensities. A distinguishing characteristic of my model is its tractability: it allows for heterogeneity, unrestricted asset positions, and fully decentralized...

Investors in financial markets face several restrictions apart from wealth constraints. The first attempt to understand these restrictions in a general competitive equilibrium framework can be traced back to Radner (1972). Here these restrictions are assumed to be given exogenously, as first...