Research Database

Models with sticky prices predict that monetary policy changes will affect relative prices and relative quantities in the short run because some prices are more flexible than others. In U.S. micro data, the degree of price stickiness differs dramatically across consumption categories. This study exploits that diversity to ask whether popular measures of monetary shocks (for example, innovations in the federal funds rate) have the predicted effects. The study finds that they do not. Short-run responses of relative prices have the wrong sign. And monetary policy shocks seem to have persistent effects on both relative prices and relative quantities, rather than the transitory effects one would expect from differences in price flexibility across goods. The findings reject the joint hypothesis that the sticky-price models typically employed in policy analysis capture the U.S. economy and that commonly used monetary policy shocks represent exogenous shifts.

No, and maybe not.

This paper is a comment on P.C.B. Phillips, “To criticise the critics: an objective Bayesian analysis of stochastic trends” [Phillips (1990)]. Departing from the likelihood of an univariate autoregressive model different routes that lead to a posterior odds analysis of the unit root hypothesis are explored, where the differences in routes are due to the different choices of the prior. Improper priors like the uniform and the Jeffreys prior are less suited for Bayesian inference on a sharp null hypothesis as the unit root. A proper normal prior on the mean of the process is analyzed and empirical results using extended Nelson/Plosser data are presented.

This paper examines the response of real wages and employment probabilities to nominal shocks using micro-panel data from the National Longitudinal Survey of Young Men. Both economy-wide and sector-specific responses to nominal shocks are examined. The observed response patterns are inconsistent with nominal contract based theories of unemployment. These theories predict that nominal surprises should be negatively correlated with real wages in sectors with nominal contracting. In fact, inflation surprises are found to be essentially uncorrelated with real wages in all sectors, while money growth surprises are positively correlated with real wages in manufacturing and uncorrelated with real wages elsewhere. The positive real wage-money growth correlation in manufacturing is robust to controls for real shocks and business cycle conditions, so it does not appear to be explicable by real business cycle models with endogenous money. The type of model described by McCallum (1980, 1986), in which commodity prices are more rigid than wages, is consistent with the result.

I present a search-based model in which money coexists with equity shares on a risky aggregate endowment. Agents can use equity as a means of payment, so shocks to equity prices translate into aggregate liquidity shocks that disrupt the mechanism of exchange. I characterize a family of optimal monetary policies, and find that the resulting equity prices are independent of monetary considerations. I also study monetary policies that target a constant, but nonzero, nominal interest rate, and find that to the extent that a financial asset is valued as a means to facilitate transactions, the asset’s real rate of return will include a liquidity return that depends on monetary considerations. Through this liquidity channel, persistent deviations from an optimal monetary policy can cause the real prices of assets that can be used to relax trading constraints to exhibit persistent deviations from their fundamental values.

Economists make extensive use of two separate descriptions of private saving behavior: the life-cycle (or overlapping generations) model, and models with intergenerational altruism. Analysis of the two frameworks is quite different, as are many of the long-run policy implications. This paper looks at evidence, at the microeconomic level, for and against altruism as a principal determinant of private wealth holdings. The database is new: this paper uses a sample of annuitants in the TIAA-CREF retirement system. We employ a combination of qualitative and quantitative information. Results are: (i) one-half or more of the sample appears altruistically motivated. And (ii) saving for intentional bequests—amounting to about $350,000–$400,000 per family (at retirement) for about half the sample—seems to account for about 25 percent of average lifetime net worth for the whole group. If the definition of parental transfers is broadened to include spending on higher education for children and gifts (rather than just estates), the contribution of intentional transfers to lifetime average net worth climbs to 35–40 percent—in our sample.

From introduction: This paper is intended to introduce economists to a simple SIR model of the progression of COVID-19 to aid understanding of how such a model might be incorporated into more standard macroeconomic models. An SIR model is a Markov model of the spread of an epidemic in which the total population is divided into categories of being susceptible to the disease (S); actively infected with the disease (I); and resistant (R), meaning those that have recovered, died from the disease, or have been vaccinated. The initial distribution of the population across these states and the transition rates at which agents move between these three states determine how an epidemic plays out over time. These transition rates are determined by characteristics of the underlying disease and by the extent of mitigation and social distancing measures. This model allows for quantitative statements regarding the tradeoff between the severity and timing of suppression of the disease through social distancing and the progression of the disease in the population.

This paper shows that some key stylized facts of exchange-rate-based stabilization plans can be explained by the uncertain duration of the plans themselves. Uncertain duration is modeled to reflect evidence showing that devaluation probabilities are higher when the plans are introduced and abandoned than in the period in between. If contingent-claims markets are incomplete, this uncertain duration distortion introduces temporary fiscal cuts with large wealth effects. Investment and employment are also distorted, and the resulting supply-side effects play a critical role. Stabilizations of uncertain duration entail large welfare costs, but they are preferred to persistent high inflation. México’s experience is examined in the light of these predictions.

We determine the second best rule for the inflation tax in monetary general equilibrium models where money is dominated in rate of return. The results in the literature are ambiguous and inconsistent across different monetary environments. We compare the derived optimal inflation tax solutions across the different environments and find that Friedman’s policy recommendation of a zero nominal interest rate is the right one.

Two types of unemployment insurance systems are studied. In one, unemployed workers receive benefits while those on reduced hours do not, as in North America (at least until recently). In the other, short-time compensation is paid to workers on reduced hours, as in Europe. With incomplete experience-rating of unemployment insurance taxes, the first system leads to inefficient temporary layoffs. The latter system does not lead to layoffs but does lead to inefficient hours per worker. Some cross-country evidence is presented regarding these effects. The implication of the analysis is that policy reform on the tax, not the benefit, side of the system is the best way to reduce the inefficiencies implied by both types of unemployment insurance.

This study describes a model built on the long-held view that the use of money as a medium of exchange is the result of an absence of double coincidence of wants. The model can account for two of the most challenging observations facing monetary theory: The disparate short-run and long-run effects of changes in the quantity of money and the coexistence of money and assets with higher rates of return. For both observations, the model's ability to provide a rich analysis depends on little more than the ingredients implicit in the absence-of-double-coincidence view.

We develop a Q model of investment with multiple capital goods that delivers a one-to-one relation between the growth rate of the capital aggregate and the stock market-based Q. We estimate the growth-Q relation using a panel of over six hundred Japanese manufacturing firms taking into account the endogeneity of Q. Identification is achieved by combining the theoretical structure of the Q model and an assumed serial correlation structure of the technology shock that comprises the error term in the growth-Q relation. The Q variable is significantly related to firm growth. Much, but not all, of the apparent explanatory power of cash flow disappears if its endogeneity is corrected for. The estimated Q coefficient is not implausibly small if the growth rate of the capital aggregate contains measurement error.

This article uses data from the 1998 Survey of Consumer Finances and from recent waves of the Panel Study of Income Dynamics to update a study of economic inequality in the United States based on 1992 and earlier data. The article reports data on the U.S. distributions of earnings, income, and wealth and on related features of inequality, such as age, employment status, educational attainment, and marital status. It also reports data on the economic inequality among U.S. households in financial trouble and on the economic mobility of U.S. households. The article finds that earnings, income, and wealth were very unequally distributed among U.S. households late in the 1990s, just as they had been at the beginning of the decade. It concludes that the basic facts about economic inequality in the United States did not change much during the 1990s.

I study a version of the Lagos-Wright (2003) model of monetary exchange in which buyers have private information about their tastes and sellers make take-it-or-leave-it-offers (i.e., have the power to set prices and quantities). The introduction of imperfect information makes the existence of monetary equilibrium a more robust feature of the environment. In general, the model has a monetary steady state in which only a proportion of the agents hold money. Agents who do not hold money cannot participate in trade in the decentralized market. The proportion of agents holding money is endogenous and depends (negatively) on the level of expected inflation. As in Lagos and Wright’s model, in equilibrium there is a positive welfare cost of expected inflation, but the origins of this cost are very different.

Using the well-known dynamic fiscal policy framework pioneered by Auerbach and Kotlikoff, we examine the efficiency and welfare implications of shifting from a linear marginal tax rate structure to a discrete rate structure characterized by two regions of flat tax rates of 15 and 28 percent. For a wide range of parameter values, we find that there is no sequence of lump-sum transfers that the (model) government can feasibly implement to make the shift from the linear to the discrete structure Pareto-improving. We conclude that the worldwide trend toward replacing rate structures having many small steps between tax rates with structures characterized by just a few large jumps is not easily accounted for by efficiency arguments. In the process of our analysis, we introduce a simple algorithm for solving dynamic fiscal policy models that include “kinks” in individual budget surfaces due to discrete tax codes. In addition to providing a relatively straightforward way of extending Auerbach-Kotlikoff-type models to this class of problems, our approach has the side benefit of facilitating the interpretation of our results.

This article describes three long-run monetary facts derived by examining data for 110 countries over a 30-year period, using three definitions of a country's money supply and two subsamples of countries: (1) Growth rates of a country's money supply and the general price level are highly correlated for all three money definitions, for the full sample of countries, and for both subsamples. (2) The growth rates of money and real output are not correlated, except for a subsample of countries in the Organisation for Economic Co-operation and Development, where these growth rates are positively correlated. (3) The rate of inflation and the growth rate of real output are essentially uncorrelated.

Ex ante optima are described for two examples of a monetary model with random meetings, some perfectly monitored people, and some nonmonitored people. One example describes optimal inflation, the other optimal seasonal policy. Although the numerical examples are arbitrary in most respects, the results are consistent with three general conclusions: if the model is known, then intervention is desirable; even the qualitative aspects of optimal intervention are not obvious; and optimal intervention depends on the details of the model. The results are therefore reminiscent of the conclusions of second-best theory.

This paper investigates the impact of aggregate variables of changes in government consumption in the context of a stochastic, neoclassical growth model. We show, theoretically, that the impact on output and employment of a persistent change in government consumption exceeds that of a temporary change. We also show that, in principle, there can be an analog to the Keynesian multiplier in the neoclassical growth model. Finally, in an empirically plausible version of the model, we show that the interest rate impact of a persistent government consumption shock exceeds that of a temporary one. Our results provide counterexamples to existing claims in the literature.

Economists have offered many theories for the U.S. Great Depression, but no consensus has formed on the main forces behind it. Here we describe and demonstrate a simple methodology for determining which theories are the most promising. We show that a large class of models, including models with various frictions, are equivalent to a prototype growth model with time-varying efficiency, labor, and investment wedges that, at least on face value, look like time-varying productivity, labor taxes, and investment taxes. We use U.S. data to measure these wedges, feed them back into the prototype growth model, and assess the fraction of the fluctuations in 1929–39 that they account for. We find that the efficiency and labor wedges account for essentially all of the decline and subsequent recovery. Investment wedges play, at best, a minor role.

This article is a progress report on research that attempts to include one type of market incompleteness and frictions in macroeconomic models. The focus of the research is the absence of insurance markets in which individual-specific risks may be insured against. The article describes some areas where this type of research has been and promises to be particularly useful, including consumption and saving, wealth distribution, asset markets, business cycles, and fiscal policies. The article also describes work in each of these areas that was presented at a conference sponsored by the Federal Reserve Bank of Minneapolis in the fall of 1993.

The paper first locates quarters in the early 1970s at which the covariance matrices of the innovation vectors have shifted for the real GNPs of the USA, West Germany and Japan treated as univariate series. The paper then exhibits differences in the impulse response time profiles of the two models estimated from the data primarily before and after the break as a concise summary of the changes in dynamic interactions of the three real GNPs.

The motive to hold inventories purely in the hope of profiting from a price increase is called the speculative motive. This motive has received considerable attention in the literature. However, existing studies do not have a clear implication for how large it is quantitatively. This paper incorporates the speculative motive for holding inventories into an otherwise standard real business cycle model and finds that empirically plausible parameterizations of the model result in an average inventory stock to output ratio that is virtually zero. For this reason, we conclude that the quantitative magnitude of the speculative role for holding inventories in this model is quite small. This suggests the possibility that the study of aggregate economic phenomena can safely abstract from inventory speculation.

We introduce procyclical labor and capital utilization, as well as costs of rapidly increasing employment, into a business-cycle model. Plausible variations in factor utilization enable us to explain observed variability of real GNP with considerably smaller economy-wide disturbances. The costs of adjustment create very interesting and realistic lead and lag relationships: Employment does not peak until a full quarter after output; workweeks, effort, capital utilization, and productivity all sharply lead the business cycle.

In the 1930s, Dunlop and Tarshis observed that the correlation between hours worked and the return to working is close to zero. This observation has become a litmus test by which macroeconomic models are judged. Existing real business cycle models fail this test dramatically. Based on this result, we argue that technology shocks cannot be the sole impulse driving post-war U.S. business cycles. We modify prototypical real business cycle models by allowing government consumption shocks to influence labor market dynamics in a way suggested by Aschauer (1985), Baro (1981, 1987), and Kormendi (1983). This modification can, in principle, bring the models into closer conformity with the data. Our results indicate that when aggregate demand shocks arising from stochastic movements in government consumption are incorporated into the analysis, and an empirically plausible degree of measurement error is allowed for, the model’s empirical performance is substantially improved.