Using the result that under the null hypothesis of no misspecification an asymptotically efficient estimator must have zero asymptotic covariance with its difference from a consistent but asymptotically inefficient estimator, specification tests are devised for a number of model specifications in econometrics. Local power is calculated for small departures from the null hypothesis. An instrumental variable test as well as tests for a time series cross section model and the simultaneous equation model are presented. An empirical model provides evidence that unobserved individual factors are present which are not orthogonal to the included right-hand-side variable in a common econometric specification of an individual wage equation.

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Specification Tests in Econometrics

This paper examines whether the Solow growth model is consistent with the international variation in the standard of living. It shows that an augmented Solow model that includes accumulation of human as well as physical capital provides an excellent description of the cross-country data. The paper also examines the implications of the Solow model for convergence in standards of living, that is, for whether poor countries tend to grow faster than rich countries. The evidence indicates that, holding population growth and capital accumulation constant, countries converge at about the rate the augmented Solow model predicts. This paper takes Robert Solow seriously. In his classic 1956 article Solow proposed that we begin the study of economic growth by assuming a standard neoclassical production function with decreasing returns to capital. Taking the rates of saving and population growth as exogenous, he showed that these two vari- ables determine the steady-state level of income per capita. Be- cause saving and population growth rates vary across countries, different countries reach different steady states. Solow's model gives simple testable predictions about how these variables influ- ence the steady-state level of income. The higher the rate of saving, the richer the country. The higher the rate of population growth, the poorer the country. This paper argues that the predictions of the Solow model are, to a first approximation, consistent with the evidence. Examining recently available data for a large set of countries, we find that saving and population growth affect income in the directions that Solow predicted. Moreover, more than half of the cross-country variation in income per capita can be explained by these two variables alone. Yet all is not right for the Solow model. Although the model correctly predicts the directions of the effects of saving and

/pdf/a-contribution-to-the-empirics-of-economic-growth-27cl5gkqam.pdf

A Contribution to the Empirics of Economic Growth

An intertemporal model for the capital market is deduced from the portfolio selection behavior by an arbitrary number of investors who aot so as to maximize the expected utility of lifetime consumption and who can trade continuously in time. Explicit demand functions for assets are derived, and it is shown that, unlike the one-period model, current demands are affected by the possibility of uncertain changes in future investment opportunities. After aggregating demands and requiring market clearing, the equilibrium relationships among expected returns are derived, and contrary to the classical capital asset pricing model, expected returns on risky assets may differ from the riskless rate even when they have no systematic or market risk. ONE OF THE MORE important developments in modern capital market theory is the Sharpe-Lintner-Mossin mean-variance equilibrium model of exchange, commonly called the capital asset pricing model.2 Although the model has been the basis for more than one hundred academic papers and has had significant impact on the non-academic financial community,' it is still subject to theoretical and empirical criticism. Because the model assumes that investors choose their portfolios according to the Markowitz [21] mean-variance criterion, it is subject to all the theoretical objections to this criterion, of which there are many.4 It has also been criticized for the additional assumptions required,5 especially homogeneous expectations and the single-period nature of the model. The proponents of the model who agree with the theoretical objections, but who argue that the capital market operates "as if" these assumptions were satisfied, are themselves not beyond criticism. While the model predicts that the expected excess return from holding an asset is proportional to the covariance of its return with the market

http://jpkc.fudan.edu.cn/picture/article/296/c7/92/0e8c302443d092d8b77a256079cf/3a6483db-591a-42b5-b904-e2430eb26c6a.pdf

An intertemporal capital asset pricing model

Norms have never been absent from the study of international politics, but the sweeping “ideational turn” in the 1980s and 1990s brought them back as a central theoretical concern in the field. Much theorizing about norms has focused on how they create social structure, standards of appropriateness, and stability in international politics. Recent empirical research on norms, in contrast, has examined their role in creating political change, but change processes have been less well-theorized. We induce from this research a variety of theoretical arguments and testable hypotheses about the role of norms in political change. We argue that norms evolve in a three-stage “life cycle” of emergence, “norm cascades,” and internalization, and that each stage is governed by different motives, mechanisms, and behavioral logics. We also highlight the rational and strategic nature of many social construction processes and argue that theoretical progress will only be made by placing attention on the connections between norms and rationality rather than by opposing the two.

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International Norm Dynamics and Political Change

Is public expenditure productive

The new economics and government policy

Introduction to "The Effects of Taxation on Multinational Corporations"

The Feldstein-Horioka study of 1980 found that OECD countries with high saving rates had high investment rates and vice versa, contrary to the traditional theory of global capital market integration. This capital market segmentation view, which has been verified in various studies over the past several decades, has important implications for tax and monetary policy. More recently, Alan Greenspan and John Helliwell have shown that the link between domestic saving and domestic investment became substantially weaker after the mid-1990s. The research reported in the current paper suggests that this is true of the smaller OECD countries but not of the larger ones. When observations are weighted by each country's GDP, the savings-investment link (i.e., the savings retention coefficient) remains relatively high. This paper also examines the recent capital flows to the United States. The Treasury International Capital (TIC) reports are generally misunderstood. When they are properly interpreted, they do not indicate that they U.S. has an excess of capital flows to finance the current account deficit. The TIC data also cannot be relied on the distinguish private and government sources of the capital flow. The persistence of these flows is therefore uncertain. The paper discusses the implications for monetary and fiscal policy of the changes in capital flows that may be happening.

Monetary Policy in a Changing International Environment: The Role of Global Capital Flows

The Elementary and Secondary Education Act of 1965 introduced a program to provide financial assistance to school districts in relation to their numbers of low-income pupils. In the fiscal year 1977, this Title I program provided more than $2.2 billion of aid. There is now substantial debate in the Congress and the administration, as well as in education circles, about the desirability of changing the block grant system that is currently used by the Title Iprogram. Thepresent article employs a behavioral simulation model and data on 4,693 school districts to provide new information about the expenditure effects of the current program and three major alternatives.

Alternative Approaches To Compensatory Education: Expenditure Effects:

This paper traces the changing role of the Council of Economic Advisers. In the 50 years since its creation, the CEA's focus has shifted from the design of policies to achieve full employment to one of advising on the much-enlarged spending and tax activities of the federal government. The CEA's original attention to achieving cyclical stability through fiscal policy diminished as economists changed their views about the inherent stability of the economy and the usefulness of fiscal policy. With the shift of macroeconomic policy to the Federal Reserve, the CEA's macroeconomic role has diminished but not disappeared. The rapid growth of government spending during the past five decades has greatly increased the role for the CEA in seeking efficient resource allocation.

Martin Feldstein

Papers

The new economics and government policy

Introduction to "The Effects of Taxation on Multinational Corporations"

Monetary Policy in a Changing International Environment: The Role of Global Capital Flows

Alternative Approaches To Compensatory Education: Expenditure Effects:

The Cea: From Stabilization to Resource Allocation