The size, growth and causes of the US “underground economy” are examined in light of new estimates of foreign holdings of US currency. World dollarization partially resolves the “currency enigma” which refers to the anomaly that roughly 80% of the US currency supply is “missing” and...

Should one think of zero nominal interest rates as an undesirable liquidity trap or as the desirable Friedman rule? I use three different frameworks to discuss this issue. First, I restate Cole and Kocherlakota's (1998) analysis of Friedman's rule: short run increases in the money stock -...

Keynes (1936) said that shortage of money caused by hoarding or failure to invest led to unemployment, but Lucas (1972) said that money does not affect unemployment. The tables have now turned. Gani (2003) produced a model of indirect trade in which money is necessary as a means of payment....

This paper examines the problem of appropriately specifying and estimating the money demand function in the presence of adaptive expectations and partial adjustment mechanisms. The paper demonstrates the difficulty of interpreting distributed lag reduced form representations of the monetary...

What is the optimum quantity of money in a society? This paper answers this question both from the perspective of a utility maximizing model with real balances in the utility function, and employing an inventory theoretic model which focuses attention on the costs of transacting in different...

Market clearing is the central issue in macroeconomics. Two centuries of debate on Say’s Law indicates that the issue is not yet settled. This essay proposes that double coincidence is a necessary condition for market clearing, in addition to the equality of demand and supply at equilibrium...

This paper examines a broad set of alternative temporal cross- section specifications of the demand for money as a means of estimating the degree of substitution between demand deposits and other liquid assets. Despite differences in data bases, model specifications and estimation techniques,...

This paper presents new evidence on the dynamics of dollarization and euroization for twenty-five transition countries. Estimates of the amount of foreign currency in circulation (FCC) in transition countries are used to develop a new comprehensive dollarization index (CDI) and separate indices...

In this paper we explore the possibility, heretofore unexplored in the marketing literature, that firms “invest funds” in their pricing processes. This builds on some of the recent economic work on the costs of price adjustment. To do this we undertook a two-year, cross- disciplinary,...

The main goal of this essay is to analyze the emergence of a barter economy, and the rise of centralized merchants and a barter redistribution system out of a primitive barter system. The environment is a spatial general equilibrium model where exchange is costly. Since exchange becomes more...