THE HARROD–BALASSA–SAMUELSON HYPOTHESIS: REAL EXCHANGE RATES AND THEIR LONG‐RUN EQUILIBRIUM*

Frictions and perturbations may influence currency values in the short run, but it is generally acknowledged that real‐exchange rates eventually settle toward equilibrium. The puzzle then is how gradually this parity is reached given the fluidity in foreign exchange markets. Persistent differences in the relative productivity of countries—a broad characterization of the Harrod–Balassa–Samuelson hypothesis—may help explain this puzzle. This article introduces methods to estimate equilibrium adjustment paths semiparametrically, and then sort how each of these components influences the dynamics of exchange rates. This is done in a dynamic panel setting by introducing novel local projections methods for cointegrated systems. Productivity shocks affect dynamics, and after adjusting for these factors, adjustment toward equilibrium is relatively rapid.     

LONG‐TERM CARE AND FAMILY BARGAINING*

We present a structural model of how families decide who should care for elderly parents. We use data from the National Long‐Term Care Survey to estimate and test the parameters of the model. Then we use the parameter estimates to simulate the effects of the existing long‐term trends in terms of the common but untested explanations for them. Finally, we simulate the effects of alternative family bargaining rules on individual utility to measure the sensitivity of our results to the family decision‐making assumptions we make.     

LONG‐TERM AND SHORT‐TERM EQUITY MARKET PRICE INTERACTIONS BETWEEN AUSTRALIA AND THE CHINESE STATES*

This study investigates the extent and manner of long‐term and short‐term price interaction between the equity market of Australia and those of China, Hong Kong, Singapore and Taiwan taking into account the effect of the Asian financial crisis. It uses cointegration and generalised forecast variance and impulse response analyses. The study finds no long‐term price relationship between the equity markets of Australia and the Chinese states. The short‐term evidence indicates that Australia was only significantly interdependent with Hong Kong during the pre‐Asian crisis period and with Hong Kong and Singapore during the post‐crisis period. Australia and these markets react to a shock from each other immediately during the first day and complete this reaction by day two. These findings are useful for investors and policy makers, especially in light of the economic importance of these nations and China's recent admittance to the World Trade Organisation.     

GOVERNMENT SPENDING,ENTRY, AND THE CONSUMPTION CROWDING‐IN PUZZLE

This article documents empirically that net firm entry robustly rises after a U.S. government spending expansion. We use this new finding to test the empirical validity of various model features that have been proposed to generate consumption crowding‐in after positive expenditure shocks. Endogenous‐entry models typically fail to generate the observed joint increase in consumption and entry. Model features that dampen the wealth effect, such as rule‐of‐thumb households or complementarity between labor and consumption in preferences, tend to reduce entry. We show that utility‐ or productivity‐enhancing public spending can reconcile the model with our documented fact and performs well empirically.     

AVAILABILITY OF HIGHER EDUCATION AND LONG‐TERM ECONOMIC GROWTH*

In the present paper, we examine the economic growth effects of a limited availability of higher education in a simple endogenous growth model with overlapping generations. It is shown that this limited availability might promote economic growth by increasing aggregate savings. If the supply of human capital is restricted, its price remains high and a large share of aggregate output is distributed to young households, which need to save for their old age. When this growth‐enhancing effect is strong enough, an excessive increase in availability leads to a shortage of investable funds, which substantially reduces economic growth.     

LONG‐TERM AND SHORT‐TERM CONTRACT IN A MIXED MARKET*

With a two‐period mixed oligopolistic framework, this paper analyses the interaction between the length of incentive contracts and market behaviour. Assuming an environment in which firms choose either a long‐term or short‐term contract, we examine how contracts differ between public and private firms. The results show that the contracts would differ completely among firms; public firm prefers to make a short‐term contract while private firm makes a long‐term contract.     

LABOR‐MARKET FRICTIONS,HUMAN CAPITAL ACCUMULATION,AND LONG‐RUN GROWTH: POSITIVE ANALYSIS AND POLICY EVALUATION*

We construct a search model with endogenous human capital and labor participation to study the growth effects of short‐run frictions and the effectiveness of human capital policies. Employment, learning effort, and output growth increase with more effective learning, better labor‐market matching, lower job separation, or less costly vacancy creation. Although output growth, employment, vacancy creation, and learning and search effort are most responsive to changes in a human capital policy that directly affects learning effort, such a policy need not be more beneficial for welfare. The effects of human capital policies become larger as the severity of labor‐market frictions rises.     

TESTING THE BAUMOL–NORDHAUS MODEL WITH EU KLEMS DATA

Baumol's (1967 ) seminal model of structural change predicts that large service industries financed mainly through taxes and social contributions—like health care and education, for instance—will acquire ever‐larger shares of total expenditures and that, concomitantly, overall productivity growth will decline. Applying a new testing strategy for Baumol's model, Nordhaus (2008 ) finds strong evidence in favor of the “cost and growth diseases” in U.S. GDP‐by‐industry data (published by the Department of Commerce's Bureau of Economic Analysis). The aim of the present paper is twofold. The first is to check whether Nordhaus's results can be reproduced using U.S. industry data from the EU KLEMS database. Second, Nordhaus's testing methodology is applied to European Union data from the same database. The results suggest that—although there are differences vis‐à‐vis the U.S.—the EU also shows symptoms of “Baumol's diseases.”     

THE RISK‐FREE RATE IN A FINITE HORIZON MODEL WITH BEQUESTS

This paper studies the risk‐free rate in an overlapping generations economy with bequests. It is shown that the risk‐free rate depends on risk aversion, the elasticity of intertemporal substitution, the share of wealth invested in human wealth, life expectancy, and the preference for bequests. In a standard life‐cycle context, mortality increases the subjective time rate of discount, and thus increases the compensation required to postpone consumption. This latter effect is offset in a bequest‐driven model of the type considered here, leading to much more powerful income effects. In this sense, the model provides a bequest‐motive explanation for the risk‐free rate puzzle put forward by Weil in 1989.     

ADOLESCENT VIDEO GAME PLAYING AND FIGHTING OVER THE LONG‐TERM

I present new evidence of the link between video game play and fighting. The General Learning Model predicts that increased aggression from playing violent video games. These predictions are tested using a large longitudinal data set tracking adolescents over time. Consistent with previous research, there is a positive raw correlation between video game playing as an adolescent and aggressive outcomes, in this case fights, even more than a decade later. However, multivariate and instrumental variables estimators do not find a causal relationship. Some implications are: support policy for further interventions is undermined, future research should be more careful about identification threats, and similar methodological approaches can be applied to the effects of other new communication technologies. (JEL D18, L86, O35)     

AN EMPIRICAL STUDY ON HEALTH IN TAIWAN AND ITS LONG‐TERM ADJUSTMENT*

This paper investigates the dynamic change of the population health status in Taiwan. Specifically, it provides insight into the empirical determinants of health production function and explores the nature of the long‐term adjustment in health performance. For these purposes, panel data are used incorporating dynamic effects as well as controls for unobservable area‐specific effect and area‐invariant time effect. The findings are consistent with the earlier research in terms of the determinants of the health production function. The result of the present paper suggests that after decades of improvement in health care, people in Taiwan have lower age‐adjusted mortality rates. Also, the decreases in mortality rates follow a rapid pace of long‐term adjustment implying that health‐care policy that focuses on the provision of medical care services substantially benefits the nation's health.     

SECULAR MEAN REVERSION AND LONG‐RUN PREDICTABILITY OF THE STOCK MARKET

The empirical financial literature reports evidence of mean reversion in stock prices and the absence of out‐of‐sample return predictability over horizons shorter than 10 years. Anecdotal evidence suggests the presence of mean reversion in stock prices and return predictability over horizons longer than 10 years, but thus far, there is no empirical evidence confirming such anecdotal evidence. The goal of this paper is to fill this gap in the literature. Specifically, using 141 years of data, this paper begins by performing formal tests of the random walk hypothesis in the prices of the real S&P Composite Index over increasing time horizons of up to 40 years. Although our results cannot support the conventional wisdom that the stock market is safer for long‐term investors, our findings speak in favor of the mean reversion hypothesis. In particular, we find statistically significant in‐sample evidence that past 15‐17 year returns are able to predict the future 15‐17 year returns. This finding is robust to the choice of data source, deflator, and test statistic. The paper continues by investigating the out‐of‐sample performance of long‐horizon return forecasting based on the mean‐reverting model. These latter tests demonstrate that the forecast accuracy provided by the mean‐reverting model is statistically significantly better than the forecast accuracy provided by the naive historical‐mean model. Moreover, we show that the predictive ability of the mean‐reverting model is economically significant and translates into substantial performance gains.     

TESTING THE ONE‐WAY EFFECT IN THE PRESENCE OF TREND BREAKS*

This paper provides an approach to testing the measures of the one‐way effect for cointegrated vector time‐series in the presence of trend breaks. We propose Wald testing the measures and their computational algorithm, an extension of previous work by Hosoya and Yao and Hosoya, to the case where trend breaks are explicitly taken into account in the cointegration relationship. On the basis of the proposed inferential method and the derived evidence, we present a causal structure characterization of money supply and income as well as interest rates for the last 44 years of the Japanese economy, and contrast it with the results of Yao and Hosoya.     

UNDERSTANDING THE LONG‐RUN DECLINE IN INTERSTATE MIGRATION

We analyze the secular decline in gross interstate migration in the United States from 1991 to 2011. We argue that migration fell because of a decline in the geographic specificity of returns to occupations, together with an increase in workers' ability to learn about other locations before moving. Micro data on earnings and occupations across space provide evidence for lower geographic specificity. Other explanations do not fit the data. A calibrated model formalizes the geographic specificity and information mechanisms and is consistent with cross‐sectional and time‐series evidence. Our mechanisms can explain at least half of the decline in migration.     

HIGH‐TECH AND HIGH CAPABILITY IN A GROWTH MODEL*

A growth model is developed to substantiate the conventional wisdom that regards high‐tech high‐capability firms as an engine of sustained technological progress. High‐tech industries are characterized by abounding technological opportunities, which promote endogenous high capability firms due to a competitive escalation mechanism. While high‐tech high‐capability firms capitalize on and discharge the existing innovation potentials, they also contribute to recharge (due to knowledge spillovers). They are a source of growth and high wage rate. An inquiry into the reasons why the high‐tech/high‐capability growth mechanism is not widely adoptable across countries points to the role of the underlying corporate governance systems.     

A THREE‐STEP PROCEDURE FOR ESTIMATING AND TESTING COINTEGRATED ARMAX MODELS*

To deal with a variety of inferential problems on non‐stationary cointegrated time series, this paper proposes a computationally feasible method based on the Whittle likelihood and examines its performance. For the empirical application of our method, the paper investigates three sets of Japanese and US monetary and financial time‐series data. To evaluate the p‐value of the likelihood ratio statistic, we propose an approximation procedure based on the gamma distribution and the accompanying Laguerre expansion for reducing the computational burden. We also provide a numerical procedure for the asymptotic covariance matrix of the Whittle estimator.     

PRODUCT MARKET AND THE SIZE–WAGE DIFFERENTIAL*

Using directed search to model the product market and the labor market, I show that large plants can pay higher wages to homogeneous workers and earn higher expected profit per worker than small plants, although plants are identical except size. A large plant charges a higher price for its product and compensates buyers with a higher service probability. To capture this size‐ related benefit, large plants try to become larger by recruiting at high wages. This size–wage differential survives labor market competition because a high wage is harder to get than a low wage. Moreover, the size–wage differential increases with the product demand when demand is initially low and falls when demand is already high.     

REPEATED MORAL HAZARD AND CONTRACTS WITH MEMORY: THE CASE OF RISK‐NEUTRALITY*

We consider a repeated moral hazard problem where both the principal and the wealth‐constrained agent are risk‐neutral. In each of two periods, the agent can exert unobservable effort, leading to success or failure. Incentives provided in the second period act as carrot and stick for the first period, so that the effort level induced in the second period is higher after a first‐period success than after a failure. If renegotiation cannot be prevented, the principal may prefer a project with lower returns; i.e., a project may be “too good” to be financed or, similarly, an agent can be “overqualified.”