Small firms in Portugal: a selective survey of stylized facts,economic analysis,and policy implications

I survey a number of stylized facts pertaining to the dynamics of firm entry, growth, and exit in competitive industries. I focus particularly on data for Portugal, although I also consider, for comparison purposes, data from other countries. I then present a series of theoretical models that attempt to explain the stylized facts and evaluate the welfare impact of market distortions. Finally, I derive a number of policy implications, all centered around the notion of economic mobility.

Price determination and dynamic adjustments: An inverse demand system approach to meat products in the United States

In this study the process of retail meat price determination is depicted in the form of an inverse demand system taking into consideration the dynamic adjustments present in monthly consumption data. The general dynamic framework identifies both long run and short run effects in a systematic manner and allows direct estimation of the long run price and scale flexibilities that are consistent with theory. The empirical application based on monthly U.S. meat products data provides reasonable and promising results.The authors are senior econometrician, Department of Risk Management, TRS, American Express Co., Phoenix, and assistant professor, Department of Applied Economics, University of Minnesota, St. Paul, respectively. The work was performed when the first author was an assistant research scientist at the Center for Agricultural and Rural Development, Department of Economics, Iowa State University, Ames. Journal Paper No. J-15784 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa. Project No. 3109.     

Public capital stock and state productivity growth: Further evidence from an error components model

The contribution of different types of public infrastructure on private production is investigated using time-series of cross-section data for the 48 contiguous states over the period 1970–1986. A Cobb-Douglas production function is estimated with unobserved state-specific effects. Measurement errors in public capital stock and its components are detected and rectified.We would like to thank Baldev Raj and an anonymous referee for helpful comments. Also, Timothy J. Gronberg and Kay McAllister who thoroughly read the earlier draft and offered many constructive suggestions. We are, however, solely responsible for any remaining errors. The data set used in this research was generously provided by Alicia H. Munnell and Leah Cook of the Federal Reserve Bank of Boston. Nat Pinnoi acknowledges the research support provided by the Texas Transportation Institute.     

Unionized oligopoly and vertical integration

Labor market structures may have important effects on imperfectly competitive rivalries between firms. This paper examines the consequences of unionization for the rivalry between duopoly firms in two types of contracts: vertical integration and vertical separation. If a franchise fee is used to extract the retailer’s profit, then it is in the individual interest of each manufacturer to choose vertical separation and charge his retailer a wholesale price in excess of the unit production cost, depending on the specific time structures. These arguments could make integration preferable for the manufacturer if the wage bargaining power of the union is relatively powerful.     

Structural change in the United States: Social accounting estimates for 1982–1988

During the 1980's, extensive structural adjustments took place in the U.S. economy. This paper uses estimates of sectorally detailed social accounting matrices to evaluate the changes in receipt and expenditure patterns, including interindustry linkages, over the 1982–1988 period. Among other effects, our results reveal increasing service orientation, shifts in energy use, and increased import and foreign investment dependence. Detailed evidence on direct and indirect demand linkages indicates large shifts in the composition of government expenditure and private investment, the latter being intensified by declines in the rate of domestic capital formation.We would like to thank Greg Alward for the 1982 IMPLAN input-output data, Norman Bakka for the National Income and Product Account Data, Ken Hanson for helpful suggestions, Mark Planting for 1985 BEA input-output data, Valerie Personick for the activity output data, and two anonymous referees for helpful comments.     

Usefulness of linear transformations in multivariate time-series analysis

Much progress has been made in recent years in multivariate time-series analysis. In this paper we summarize some of the methodological developments that are particularly relevant to empirical economics and highlight especially the usefulness of linear transformations in analyzing multivariate time series. The topics considered include vector ARMA models, principal component analysis, scalar component models, canonical correlation analyses, co-integration, and unit-root tests. We illustrate the methods considered by an example using Taiwan's interest-rate series and provide critiques of these developments.     

Stock prices,production and interest rates: Comparison of three European countries with the USA

This paper investigates the relationships between stock returns, changes in production, and changes in interest rates in three European countries: France, Germany, and the United Kingdom. The results obtained using annual data are much more conclusive than those obtained using quarterly data. Stock returns are affected by current changes in interest rates and by future changes in production. The dependence on changes in interest rates seems to be higher than on changes in production. Furthermore, the influence of future changes in production on stock returns diminishes substantially when contemporaneous changes in interest rates are taken into account. With reference to these points, the European markets behave in a similar fashion, but are in sharp contrast with the U.S. market.I am very grateful to Kay Davidson, Patric Hendershott and two anonymous referees for useful comments and suggestions. I am solely responsible for all remaining errors.     

Measuring environmental efficiency of industry: a case study of thermal power generation in India

Technical and environmental efficiency of some coal-fired thermal power plants in India is estimated using a methodology that accounts for firm’s efforts to increase the production of good output and reduce pollution with the given resources and technology. The methodology used is directional output distance function. Estimates of firm-specific shadow prices of pollutants (bad outputs), and elasticity of substitution between good and bad outputs are also obtained. The technical and environmental inefficiency of a representative firm is estimated as 0.06 implying that the thermal power generating industry in Andhra Pradesh state of India could increase production of electricity by 6/ while decreasing generation of pollution by 6%. This result shows that there are incentives or win–win opportunities for the firms to voluntarily comply with the environmental regulation. It is found that there is a significant variation in marginal cost of pollution abatement or shadow prices of bad outputs across the firms and an increasing marginal cost of pollution abatement with respect to pollution reduction by the firms. This result calls for the use of economic instruments like pollution taxes instead of command and control regulation used currently in India to reduce air pollution.

An overlooked explanation of the declining saving rate

With a socioeconomic model of the determinants of savings that takes into account variables reflecting the abrupt changes in the divorce rate that occurred during the 1970s and the 1980s in the U.S., the increase in women's participation in the labour force, and their greater investrnent in education, we explain part of the measured decline in the saving rate. The uncertainty generated by the increased likelihood of divorces encourages households and women, in particular, to substitute human capital to financial or physical capital for precautionary savings.The authors thank Anna J. Schwartz and Pierre Perron for helpful suggestions and Anne-Marie El Hakim for her dedicated assistance on this project. The comments of the editor and of an anonymous referee contributed to improve the final version of the paper. The project was financed, in part, by a grant of the Quebec FCAR Fund.     

The impact of the Paasche-Laspeyres choice upon econometric results

Does it make any difference to econometric results whether ones uses the Laspeyres or Paasche index? In general, the divergence between these two is small, suggesting that index choice makes little difference to econometric results. We estimate 72 Malthusian models and because the Paasche and Laspeyres indices we use show below average divergence, these reslts should be conservative. We find that parameters differ substantially, that parameter signs can be reversed, thatr ²s change markedly and that hypothesis test results are reversed. These findings indicate the importance of estimating exact indices.     

New evidence on the convergence of international income from a group of 29 countries

This paper updates and extends the time-series evidence on the convergence of international incomes using a set of 29 countries over the period 1900–2001. Time-series tests for stochastic convergence are supplemented with tests which provide evidence on the notion of “β-convergence” predicted by the Solow model. The evidence indicates that the relative income series of 21 countries are consistent with stochastic convergence, and that β-convergence has occurred in at least 16 countries at some point during the twentieth century. Further examination of the properties of the β-convergence test provides anecdotal evidence of conditional convergence in three additional countries for which the convergence hypothesis was initially rejected. Consideration of convergence clubs strengthens the evidence in favor of convergence. Analysis of the cross-country dispersion of incomes over time also suggests that convergence has occurred over the 1900–2001 period, particularly within certain clubs, with structural breaks associated with World War II in many countries causing a break in the convergence process.      

Demand,innovation, and the dynamics of market structure: The role of experimental users and diverse preferences

The history of a number of industries is marked by a succession of eras, associated with different dominant technologies. Within any era, industry concentration tends to grow. Particular eras are broken by the introduction of a new technology which, while initially inferior to the established one in the prominent uses, has the potential to become competitive. In many case new entrants survive and grow, and the large established firms do not make the transition. In other cases, the established firms are able to switch over effectively, and compete in the new era. This paper explores a model which generates this pattern and has focused on the characteristics of the demand. We argue that the ability of the new firms exploring the new technology to survive long enough to get that technology effectively launched depends on the existence of fringe markets which the old technology does not serve well, or experimental users, or both. Established firms initially have little incentive to adopt the new technology, which initially is inferior to the technology they have mastered. New firms generally cannot survive in head-to-head conflict with established firms on the market well served by the latter. The new firms need to find a market that keeps them alive long enough so that they can develop the new technology to a point where it is competitive on the main market. Niche markets, or experimental users, can provide that space.

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Franco MalerbaEmail:

     

The combined estimator approach to model transferability and updating

The idea of transferability is to employ in model estimation, fitted model parameters computed from a different data set. Thecombined estimator approach to the transferability problem is expressed as a linear combination of the unbiased direct estimators on the two data sets. The major gain is in variance reduction. The combined estimator is shown to have superior accuracy, in a Mean Square Error sense, to a unbiased direct estimator whenever the transfer bias is relatively small. A test that indicates if the combined estimator is superior to the direct estimator is provided. Variances of the direct estimators are assumed to be known. Monte Carlo experiments are performed to assess the quality of the approximations. The results show that the approximations used are highly conservative. An empirical example of the combined estimator applied to a discrete choice problem is presented.     

The impact of employers' recruitment behaviour on the allocation of vacant jobs to unemployed job seekers

This paper is focused on the allocation of vacant jobs to job seekers from a demand side perspective by studying the recruitment behaviour of employers. A model is developed to analyze the role of search and selection methods of employers as determinants of the probability that an unemployed person will be hired for a certain type of job. In an empirical application for the Dutch labour market, we have examined the effect of employer's recruitment behaviour on the allocation of vacant jobs to employed, unemployed and school-leaving job seekers.We find that job requirements for the applicants with respect to work experience are the most important determinant of the probability that an unemployed person will be selected to fill a vacant job. In addition, the use of advertisements by employers for jobs requiring high skill levels does also have a significant effect.     

The sources of the U.S. money demand instability

The structural stability of money demand relations has been the issue of a substantial number of empirical studies. In most studies for the U.S. structural breaks were found in the 1970s and the 1980s. In the present study a money demand function is specified in error-correction-form which involves realM1, realGNP, the deflator and a short-term interest rate. Using flexible least squares it is shown for the U.S. that the long-run coefficients ofM1, GNP and the interest rate are relatively stable over a period of more than 30 years while the deflator does not enter the relation. The instability of the relation is mainly due to changes in the short-term dynamics.The author thanks Martin Moryson for outstanding research assistance. The computations were performed with a GAUSS program written by the late Wolfgang Schneider.     

Partially sighted persons and the public debt elephant

Recent data on the accumulation patterns of public debt across OECD countries suggests a synthesis is possible between the theoretical and empirical approaches to public debt and also between the traditional and more recent political economy explanations of public debt accumulation. The inductive approach of recent political economy explanations is combined with the intertemporal constraints highlighted in the Ricardian–Barro theory to present a reinterpretation of cross-country debt accumulations patterns. Like the elephant in the blind men and the elephant fable, the conclusion is glaringly obvious. Formal and informal budgetary constraints matter.

Bayesian estimation of cointegrating thresholds in the term structure of interest rates

Threshold Error Correction Models are used to analyse the term structure of interest Rates. The paper develops and uses a generalisation of existing models that encompasses both the Band and Equilibrium threshold models of [Balke and Fomby ((1997) Threshold cointegration. Int Econ Rev 38(3):627–645)] and estimates this model using a Bayesian approach. Evidence is found for threshold effects in pairs of longer rates but not in pairs of short rates. The Band threshold model is supported in preference to the Equilibrium model.

A family of inverse demand systems and choice of functional form

Barten's (1992) analysis of choice of functional form for quantity-dependent demand systems is extended to price-dependent or inverse demand systems. Alternative inverse demand systems combining the features of the Rotterdam inverse demand and almost ideal inverse demand systems are examined. Choice of functional form is made through a synthetic model which under appropriate restrictions yields the different inverse demand systems. The synthetic model itself can also be considered a more flexible specification.