This paper studies the sources of Spanish business cycles. It assumes that Spanish output is affected by two types of shocks. The first one has permanent long-run effects on output and it is identified as a supply shock. The second one has only transitory effects on output and it is identified...

Starting with the literature on the estimates of the natural rate of interest, this paper critically analyzes the modern practice of identifying the benchmark rate of monetary policy with an equilibrium or neutral interest rate reflecting “fundamental forces” unaffected by monetary factors....

Uncertainty is a complex and “multilayered” object of multidisciplinary research. However, such concepts as “fundamental uncertainty”, “ambiguity”, “probability” and “risk” are common and universal. For a long time in economic theory, the problem of uncertainty remained, as...

I construct a general, game theoretic model of markets. Agents in the model choose how much of each good to supply/demand, and at what prices. Trading can occur at non-market-clearing prices. There is an explicit rationing mechanism that kicks in if markets fail to clear. The game is very...

This paper presents a new solution method for dynamic equilibrium models. The proposed method approximates the solution by polynomials that zero the residual function and its derivatives at a given point x0. It is essentially a projection-type algorithm, but is significantly faster than standard...

Robert Solow has criticized our 2006 Journal of Economic Perspectives essay describing Modern Macroeconomics in Practice. Solow eloquently voices the commonly heard complaint that too much macroeconomic work today starts with a model with a single type of agent. We argue that modern...

The OLG model of Allais and Samuelson retains the methodological assumptions of agent optimization and market clearing from the Arrow-Debreu model, yet its equilibrium set has different properties: Pareto inefficiency, indeterminacy, positive valuation of money, and a golden rule equilibrium in...

The Cobb-Douglas production function (the C-D function) is believed to have successfully validated and consolidated the marginal productivity theory of income distribution (MPTID) and the aggregate production function (APF). However, this paper discovers that this success is an illusion. It...

We develop an aggregate demand analysis of a small open economy based on all agents' dynamic optimization. Murota and Ono (2015) present a simple Keynesian cross analysis with dynamic optimization. This paper extends it to a small-country setting with two factors and two commodities, of which...

This book examines new classical macroeconomics from a comparative and critical point of view that confronts the original texts and later comments as a first dimension of comparison. The second dimension appears in a historical context, since none of the new classical doctrines can be analyzed...