Showing papers by "National Bureau of Economic Research published in 1999"

Why do Some Countries Produce So Much More Output Per Worker than Others

Abstract: Output per worker varies enormously across countries. Why? On an accounting basis our analysis shows that differences in physical capital and educational attainment can only partially explain the variation in output per worker—we find a large amount of variation in the level of the Solow residual across countries. At a deeper level, we document that the differences in capital accumulation, productivity, and therefore output per worker are driven by differences in institutions and government policies, which we call social infrastructure. We treat social infrastructure as endogenous, determined historically by location and other factors captured in part by language. In 1988 output per worker in the United States was more than 35 times higher than output per worker in Niger. In just over ten days the average worker in the United States produced as much as an average worker in Niger produced in an entire year. Explaining such vast differences in economic performance is one of the fundamental challenges of economics. Analysis based on an aggregate production function provides some insight into these differences, an approach taken by Mankiw, Romer, and Weil [1992] and Dougherty and Jorgenson [1996], among others. Differences among countries can be attributed to differences in human capital, physical capital, and productivity. Building on their analysis, our results suggest that differences in each element of the production function are important. In particular, however, our results emphasize the key role played by productivity. For example, consider the 35-fold difference in output per worker between the United States and Niger. Different capital intensities in the two countries contributed a factor of 1.5 to the income differences, while different levels of educational attainment contributed a factor of 3.1. The remaining difference—a factor of 7.7—remains as the productivity residual. * A previous version of this paper was circulated under the title ‘‘The Productivity of Nations.’’ This research was supported by the Center for Economic Policy Research at Stanford and by the National Science Foundation under grants SBR-9410039 (Hall) and SBR-9510916 (Jones) and is part of the National Bureau of Economic Research’s program on Economic Fluctuations and Growth. We thank Bobby Sinclair for excellent research assistance and colleagues too numerous to list for an outpouring of helpful commentary. Data used in the paper are available online from http://www.stanford.edu/,chadj.

Financial development and economic growth : views and agenda

Abstract: The author argues that the preponderance of theoretical reasoning and empirical evidence suggests a positive first order relationship between financial development and economic growth. There is evidence that the financial development level is a good predictor of future rates of economic growth, capital accumulation, and technological change. Moreover, cross-country, case-style, industry level and firm-level analysis document extensive periods when financial development crucially affects the speed and pattern of economic development. The author explains what the financial system does and how it affects, and is affected by, economic growth. Theory suggests that financial instruments, markets and institutions arise to mitigate the effects of information and transaction costs. A growing literature shows that differences in how well financial systems reduce information and transaction costs influence savings rates, investment decisions, technological innovation, and long-run growth rates. A less developed theoretical literature shows how changes in economic activity can influence financial systems. The author advocates a functional approach to understanding the role of financial systems in economic growth. This approach focuses on the ties between growth and the quality of the functions provided by the financial systems. The author discourages a narrow focus on one financial instrument, or a particular institution. Instead, the author addresses the more comprehensive question: What is the relationship between financial structure and the functioning of the financial system?

The Science of Monetary Policy: A New Keynesian Perspective

Abstract: This paper reviews the recent literature on monetary policy rules. To organize the discussion, we exposit the monetary policy design problem within a simple baseline theoretical framework. We then consider the implications of adding various real word complications. We concentrate on developing results that are robust across a reasonable variety of competing macroeconomic frameworks. Among other things, we show that the optimal policy implicitly incorporates inflation targeting. We also characterize the gains from making credible commitments to fight inflation and consider the implications of frictions such as imperfect information and model uncertainty. Finally, we assess how proposed simple rules, such as the Taylor rule, square with the principles for optimal policy that we describe. We use this same metric to evaluate the recent course of U.S. monetary policy.

Financial Intermediation and Growth: Causality and Causes

Abstract: Legal and accounting reform that strengthens creditor rights, contract enforcement, and accounting practices boosts financial development and accelerates economic growth. Levine, Loayza, and Beck evaluate: Whether the level of development of financial intermediaries exerts a casual influence on economic growth. Whether cross-country differences in legal and accounting systems (such as creditor rights, contract enforcement, and accounting standards) explain differences in the level of financial development. Using both traditional cross-section, instrumental-variable procedures and recent dynamic panel techniques, they find that development of financial intermediaries exerts a large causal impact on growth. The data also show that cross-country differences in legal and accounting systems help determine differences in financial development. Together, these findings suggest that legal and accounting reform that strengthens creditor rights, contract enforcement, and accounting practices boosts financial development and accelerates economic growth. This paper - a product of Macroeconomics and Growth, Development Research Group - is part of a larger effort in the group to understand the links between the financial system and economic growth. Thorsten Beck may be contacted at tbeck@worldbank.org.

Finance and the Sources of Growth

Abstract: Development of the banking sector exerts a large, causal impact on total factor productivity growth, which in turn causes GDP to grow. Whether banking development has a long-run effect on capital growth or private saving remains to be seen. Beck, Levine, and Loayza evaluate whether the level of development in the banking sector exerts a causal impact on economic growth and its sources- total factor productivity growth, physical capital accumulation, and private saving. They use (1) a pure cross-country instrumental variable estimator to extract the exogenous component of banking development and (2) a new panel technique that controls for country-specific effects and endogeneity. They find that: - Banks do exert a large, causal impact on total factor productivity growth, which feeds through to overall GDP growth. - The long-run links between banking development and both capital growth and private savings are more tenuous. This paper - a product of Finance, Development Research Group - is part of a larger effort in the group to understand the links between the financial system and economic growth.

No Contagion, Only Interdependence: Measuring Stock Market Co-Movements

Abstract: This paper examines stock market co-movements. It begins with a discussion of several conceptual issues involved in measuring these movements and how to test for contagion. Standard tests examine if cross-market correlation in stock market returns increase during a period of crisis. The measure of cross-market correlations central to this standard analysis, however, is biased. The unadjusted correlation coefficient is conditional on market movements over the time period under consideration, so that during a period of turmoil when stock market volatility increases, standard estimates of cross-market correlations will be biased upward. It is straightforward to adjust the correlation coefficient to correct for this bias. The remainder of the paper applies these concepts to test for stock market contagion during the 1997 East Asian crises, the 1994 Mexican peso collapse, and the 1987 U.S. stock market crash. In each of these cases, tests based on the unadjusted correlation coefficients find evidence of contagion in several countries, while tests based on the adjusted coefficients find virtually no contagion. This suggests that high market co-movements during these periods were a continuation of strong cross-market linkages. In other words, during these three crises there was no contagion, only interdependence.

Public goods and ethnic divisions

Abstract: The authors present a model that links heterogeneity of preferences across ethnic groups in a city to the amount and type of public good the city supplies. Results show that the shares of spending on productive public goods - education, roads, sewers, and trash pickup _ in U.S. cities (metro areas/urban counties) are inversely related to the city's (metro area's/county's) ethnic fragmentation, even after controlling for other socioeconomic and demographic determinants. They conclude that the ethnic conflict is an important determinant of local public finances. In cities where ethnic groups are polarized, and where politicians have ethnic constituencies, the share of spending that goes to public goods is low. Their results are driven mainly by how white-majority cities react to varying minority-groups sizes. Voters choose lower public goods when a significant fraction of tax revenues collected from one ethnic group is used to provide public goods shared with other ethnic groups.

Estimating Log Models: To Transform or Not to Transform?

Abstract: Data on health care expenditures, length of stay, utilization of health services, consumption of unhealthy commodities, etc. are typically characterized by: (a) nonnegative outcomes; (b) nontrivial fractions of zero outcomes in the population (and sample); and (c) positively-skewed distributions of the nonzero realizations. Similar data structures are encountered in labor economics as well. This paper provides simulation-based evidence on the finite-sample behavior of two sets of estimators designed to look at the effect of a set of covariates x on the expected outcome, E(y|x), under a range of data problems encountered in every day practice: generalized linear models (GLM), a subset of which can simply be viewed as differentially weighted nonlinear least-squares estimators, and those derived from least-squares estimators for the ln(y). We consider the first- and second- order behavior of these candidate estimators under alternative assumptions on the data generating processes. Our results indicate that the choice of estimator for models of ln(E(x|y)) can have major implications for empirical results if the estimator is not designed to deal with the specific data generating mechanism. Garden-variety statistical problems - skewness, kurtosis, and heteroscedasticity - can lead to an appreciable bias for some estimators or appreciable losses in precision for others.

A New Database on Financial Development and Structure

Abstract: This new database of indicators of financial development and structure across countries and over time unites a range of indicators that measure the size, activity, and efficiency of financial intermediaries and markets. Beck, Demirguc-Kunt, and Levine introduce a new database of indicators of financial development and structure across countries and over time. This database is unique in that it unites a variety of indicators that measure the size, activity, and efficiency of financial intermediaries and markets. It improves on previous efforts by presenting data on the public share of commercial banks, by introducing indicators of the size and activity of nonbank financial institutions, and by presenting measures of the size of bond and primary equity markets. The compiled data permit the construction of financial structure indicators to measure whether, for example, a country's banks are larger, more active, and more efficient than its stock markets. These indicators can then be used to investigate the empirical link between the legal, regulatory, and policy environment and indicators of financial structure. They can also be used to analyze the implications of financial structure for economic growth. Beck, Demirguc-Kunt, and Levine describe the sources and construction of, and the intuition behind, different indicators and present descriptive statistics. This paper - a product of Finance, Development Research Group - is part of a broader effort in the group to understand the determinants of financial structure and its importance to economic development. The authors may be contacted at tbeck@worldbank.org, ademirguckunt@worldbank.org, or rlevine@csom.umn.edu.

The Impact of Outsourcing and High-Technology Capital on Wages: Estimates For the United States, 1979–1990

Abstract: We estimate the relative influence of trade versus technology on wages in a "large-country" setting, where technological change affects product prices. Trade is measured by the foreign outsourcing of intermediate inputs, while technological change is measured by expenditures on high-technology capital such as computers. The estimation procedure we develop, which modifies the conventional "price regression," is able to distinguish whether product price changes are due to factor-biased versus sector-biased technology shifts. In our base specification we find that computers explain about 35 percent of the increase in the relative wage of nonproduction workers, while outsourcing explains 15 percent; both of these effects are higher in other specifications.

The Theory and Practice of Corporate Finance: Evidence from the Field

Abstract: We survey 392 CFOs about the cost of capital, capital budgeting, and capital structure. Large firms rely heavily on net present value techniques and the capital asset pricing model, while small firms are relatively likely to use the payback criterion. Older executives without an MBA are more likely to rely on payback than are younger executives with an MBA. Surprisingly, most companies use a single company-wide discount rate to evaluate a project in a new industry and country. In addition to market risk, firms also frequently adjust cash flows or discount rates for interest rate risk, exchange rate risk, business cycle risk, and inflation risk. Few firms adjust discount rates or cash flows for book-to-market, distress, or momentum risks. A majority of large firms have a tight or somewhat tight target debt ratio, in contrast to only one-third of small firms. Executives rely heavily on informal rules when choosing capital structure. The most important factors affecting debt policy are maintaining financial flexibility and having a good credit rating. When issuing equity, respondents are concerned about earnings per share dilution and recent stock price appreciation. We find some support for the pecking-order and trade-off capital structure hypotheses but little evidence that executives are concerned about asset substitution, asymmetric information, transactions costs, free cash flows, or personal taxes. If CFOs behave according to these deeper hypotheses, they apparently do so unknowingly.

The Stock Market Valuation of Research and Development Expenditures

Abstract: We examine whether stock prices fully reflect the value of firms? intangible assets, focusing on research and development (R&D). Since intangible assets are not reported on financial statements under current U.S. accounting standards and R&D spending is expensed, the valuation problem may be especially challenging. Nonetheless we find that historically the stock returns of firms doing R&D on average matches the returns on firms with no R&D. For companies engaged in R&D, high R&D intensity has a distinctive effect on returns for two groups of stocks. Within the set of growth stocks, R&D-intensive stocks tend to out-perform stocks with little or no R&D. Companies with high R&D relative to equity market value (who tend to have poor past returns) show strong signs of mis-pricing. In both cases the market apparently fails to give sufficient credit for firms? R&D investments. Our exploratory investigation of the effects of advertising on returns yields similar results. We also provide evidence that R&D intensity is positively associated with return volatility, everything else equal. Insofar as the association reflects investors? lack of information about firms? R&D activity, increased accounting disclosure may be beneficial.

Managerial Incentive Problems: A Dynamic Perspective

Abstract: The paper studies how a person's concern for a future career may influence his or her incentives to put in effort or make decisions on the job. In the model, the person's productive abilities are revealed over time through observations of performance. There are no explicit output contingent contracts, but since the wage in each period is based on expected output and expected output depends on assessed ability, an implicit contact' links today's performance to future wages. An incentive problem arises from the person's ability and desire to influence the learning process, and therefore the wage process, by taking unobserved actions that affect today's performance. The fundamental incongruity in preferences is between the individual's concern for human capital returns and the firm's concern for financial returns. The two need to be only weakly related. It is shown that career motives can be beneficial as well as detrimental, depending on how well the two kinds of capital returns are aligned.

Ethnic Chinese Networks in International Trade

Abstract: Ethnic Chinese networks, as proxied by the product of ethnic Chinese population shares, are found in 1980 and 1990 to have increased bilateral trade both within Southeast Asia and for other country pairs. Their effects within Southeast Asia are much greater for differentiated than for homogeneous products, while for other country pairs their effects are neither economically nor statistically significantly different across commodity groups. We interpret these and other, complementary findings as showing that (1) where ethnic Chinese communities are relatively large fractions of their countries' populations and have relatively numerous direct connections across international borders, they facilitate international trade primarily by helping to match international buyers and sellers in characteristics space, and (2) ethnic Chinese communities that are small fractions of their countries' populations are close-knit and facilitate international trade mainly by enforcing community sanctions that deter opportunistic behavior. The smallest estimated increase in bilateral trade in differentiated products within Southeast Asia attributable to ethnic Chinese networks exceeds 150 percent, suggesting that the informal trade barriers these networks help to overcome are economically important.

Using Maimonides' Rule to Estimate the Effect of Class Size on Scholastic Achievement

Abstract: The twelfth century rabbinic scholar Maimonides proposed a maximum class size of 40. This same maximum induces a nonlinear and nonmonotonic relationship between grade enrollment and class size in Israeli public schools today. Maimonides’ rule of 40 is used here to construct instrumental variables estimates of effects of class size on test scores. The resulting identiecation strategy can be viewed as an application of Donald Campbell’s regression-discontinuity design to the class-size question. The estimates show that reducing class size induces a signiecant and substantial increase in test scores for fourth and efth graders, although not for third graders. When asked about their views on class size in surveys, parents and teachers generally report that they prefer smaller classes. This may be because those involved with teaching believe that smaller classes promote student learning, or simply because smaller classes offer a more pleasant environment for the pupils and teachers who are in them [Mueller, Chase, and Walden 1988]. Social scientists and school administrators also have a longstanding interest in the class-size question. Class size is often thought to be easier to manipulate than other school inputs, and it is a variable at the heart of policy debates on school quality and the allocation of school resources in many countries (see, e.g., Robinson [1990] for the United States; OFSTED [1995] for the United Kingdom; and Moshel-Ravid [1995] for Israel). This broad interest in the consequences of changing class size

Experimental Estimates Of Education Production Functions

Abstract: This paper analyzes data on 11,600 students and their teachers who were randomly assigned to different size classes from kindergarten through third grade. Statistical methods are used to adjust for nonrandom attrition and transitions between classes. The main conclusions are (1) on average, performance on standardized tests increases by four percentile points the first year students attend small classes; (2) the test score advantage of students in small classes expands by about one percentile point per year in subsequent years; (3) teacher aides and measured teacher characteristics have little effect; (4) class size has a larger effect for minority students and those on free lunch; (5) Hawthorne effects were unlikely.

An Empirical Characterization of the Dynamic Effects of Changes in Government Spending and Taxes on Output

Abstract: This paper characterizes the dynamic effects of shocks in government spending and taxes on economic activity in the United States in the post-war period. It does so by using a mixed structural VAR/event study approach. Identification is achieved by using institutional information about the tax and transfer systems and the timing of tax collections to identify the automatic response of taxes and spending to activity, and, by implication, to infer fiscal shocks. The results consistently show positive government spending shocks as having a positive effect on output, and positive tax shocks as having a negative effect. The multipliers for both spending and tax shocks are typically small. Turning to the effects of taxes and spending on the components of GDP, one of the results has a distinctly non-standard flavor: Both increases in taxes and increases in government spending have a strong negative effect on investment spending.

Stock Market Development and Long-Run Growth

Abstract: Is there a strong empirical association between stock market development and long-term economic growth? Cross-country regressions suggest that there is a positive and robust association. Levine and Zervos empirically evaluate the relationship between stock market development and long-term growth. The data suggest that stock market development is positively associated with economic growth. Moreover, instrumental variables procedures indicate a strong connection between the predetermined component of stock market development and economic growth in the long run. While cross-country regressions imply a strong link between stock market development and economic growth, the results should be viewed as suggestive partial correlations that stimulate additional research rather than as conclusive findings. Much work remains to be done to shed light on the relationship between stock market development and economic growth. Careful case studies might help identify causal relationships and further research could be done on the time-series property of such relationships. Research should also be done to identify policies that facilitate the development of sound securities markets. This paper - a product of the Finance and Private Sector Development Division, Policy Research Department - is part of a larger effort in the department to study the relationship between financial systems and economic growth. The study was funded by the Bank's Research Support Budget under the research project Stock Market Development and Financial Intermediary Growth (RPO 679-53).

Transform Analysis and Asset Pricing for Affine Jump-Diffusions

Abstract: In the setting of "affine" jump-diffusion state processes, this paper provides an analytical treatment of a class of transforms, including various Laplace and Fourier transforms as special cases, that allow an analytical treatment of a range of valuation and econometric problems. Example applications include fixed-income pricing models, with a role for intensity-based models of default, as well as a wide range of option-pricing applications. An illustrative example examines the implications of stochastic volatility and jumps for option valuation. This example hightlights the impact on option 'smirks' of the joint distribution of jumps in volatility and jumps in the underlying asset price, through both jump amplitude as well as jump timing.

Consumption and Portfolio Decisions when Expected Returns are Time Varying

Abstract: This paper presents an approximate analytical solution to the optimal consumption and portfolio choice problem of an infinitely lived investor with Epstein-Zin-Weil utility who faces a constant riskless interest rate and a time-varying equity premium. When the model is calibrated to U. S. stock market data, it implies that intertemporal hedging motives greatly increase, and may even double, the average demand for stocks by investors whose risk-aversion coefficients exceed one. The optimal portfolio policy also involves timing the stock market. Failure to time or to hedge can cause large welfare losses relative to the optimal policy.

Costly Capital Reallocation and the Effects of Government Spending

Abstract: Changes in government spending often lead to significant shifts in demand across sectors. This paper analyzes the effects of sector-specific changes in government spending in a two-sector dynamic general equilibrium model in which the reallocation of capital across sectors is costly. The two-sector model leads to a richer array of possible responses of aggregate variables than the one-sector model. The empirical part of the paper estimates the effects of military buildups on a variety of macroeconomic variables using a new measure of military shocks. The behavior of macroeconomic aggregates is consistent with the predictions of a multi-sector neoclassical model. In particular, consumption, real product wages and manufacturing productivity fall in response to exogenous military buildups in the post-World War II United States.

The Going‐Public Decision and the Development of Financial Markets

Abstract: This paper explores the linkages between stock price efficiency, the choice between private and public financing, and the development of capital markets in emerging economies. Generally, the advantage of public financing is high if costly information is diverse and cheap to acquire, and if investors receive valuable information without cost. The value of public firms generally depends on public market size, which implies that there can be a positive externality associated with going public, so that an inferior equilibrium can exist where too few firms go public. The model is consistent with empirical observations on financial market development.

Are Some Mutual Fund Managers Better Than Others? Cross-Sectional Patterns in Behavior and Performance

Abstract: We examine whether mutual fund performance is related to characteristics of fund managers that may indicate ability, knowledge, or effort. In particular, we study the relationship between performance and the manager's age, the average composite SAT score at the manager's undergraduate institution, and whether the manager has an MBA. Although the raw data suggest striking return differences between managers with different characteristics, most of these can be explained by behavioral differences between managers and by selection biases. After adjusting for these, some performance differences remain. In particular, managers who attended higher-SAT undergraduate institutions have systematically higher risk-adjusted excess returns. THE FINANCIAL PRESS PRODUCES a tremendous volume and variety of information about the individuals who manage mutual funds. Profiles of fund managers are a staple of many financial magazines, and managerial changes at large funds merit front page stories in newspaper business sections. Recently, the Securities and Exchange Commission has allowed some funds to advertise the past records of their managers in the press, even though those track records were assembled while the managers were employed by other funds. Thus, one gets the impression that investors pay a great deal of attention to the individuals who are managing their money. In light of this behavior, an obvious question to ask is whether some managers are indeed better than others. A large number of previous papers have addressed the related question of whether some mutual funds are better than others (from an investor's perspective) by looking for evidence of persistence over time in mutual fund

Beyond Becker: Training in Imperfect Labour Markets

Abstract: In this paper, the authors survey noncompetitive theories of training. With competitive labor markets, firms never pay for investments in general training, whereas when labor markets are imperfect, firm-sponsored training arises as an equilibrium phenomenon. The authors discuss a variety of evidence that supports the predictions of noncompetitive theories and they draw some tentative policy conclusions from these models.

The Determinants of Cross-Border Equity Flows

Abstract: We apply a new approach to a new panel data set on bilateral gross cross-border equity flows between 14 countries, 1989-96. The remarkably good results have strong implications for theories of asset trade. We find that the geography of information heavily determines the pattern of international transactions. Our model integrates elements of the finance literature on portfolio composition and the international macroeconomics and asset trade literature. Gross asset flows depend on market size in both source and destination country as well as trading costs, in which both information and the transaction technology play a role. The resulting augmented gravity' equation has equity market capitalisation representing market size and distance proxying some informational asymmetries, as well as a variable representing openness of each economy. But other variables explicitly represent information transmission (telephone call traffic and multinational bank branches), an information asymmetry between domestic and foreign investors (degree of insider trading), and the efficiency of transactions ( financial market sophistication'). This equation accounts for almost 70% of the variance of the transaction flows. Dummy variables (adjacency, language, currency or trade bloc, and a major financial centre' effect) do not improve the results, nor does a variable representing destination country stock market returns. The key role of informational asymmetries is confirmed. Our information transmission variables also substantially improve standard gravity equations for trade in goods.

State-Dependent Pricing and the General Equilibrium Dynamics of Money and Output

Abstract: Economists have long suggested that nominal product prices are changed infrequently because of fixed costs. In such a setting, optimal price adjustment should depend on the state of the economy. Yet, while widely discussed, statedependent pricing has proved difficult to incorporate into macroeconomic models. This paper develops a new, tractable theoretical state-dependent pricing framework. We use it to study how optimal pricing depends on the persistence of monetary shocks, the elasticities of labor supply and goods demand, and the interest sensitivity of money demand.

Career Concerns of Mutual Fund Managers

Abstract: We examine the labor market for mutual fund managers. Using data from 1992–1994, we find that "termination" is more performance-sensitive for younger managers. We identify possible implicit incentives created by the termination-performance relationship. The shape of the termination-performance relationship may give younger managers an incentive to avoid unsystematic risk. Direct effects of portfolio composition may also give younger managers an incentive to "herd" into popular sectors. Consistent with these incentives, we find that younger managers hold less unsystematic risk and have more conventional portfolios. Promotion incentives and market responses to managerial turnover are also studied.