Evidence on the internal labor market during a process of rapid economic growth

We examine the nature and extent of labor market segmentation in Brazil through a survey of 82 modern sector firms in São Paulo. Hiring, training and promotion patterns are found to differ significantly between occupations and a key to understanding these patterns is the nature of skill acquisition, particularly ‘learning on the job’. Furthermore the presence of skill- specificity and internal labor markets for supervisory personnel provide a possible explanation for why relative wages have widened during Brazil's period of rapid economic growth.     

Technical Efficiency of the Brazilian Municipalities: Correcting Nonparametric Frontier Measurements for Outliers

In this paper we estimate the DEA technical efficiency for 4796 Brazilian municipalities, by applying a recently proposed “Jackstrap” method, which combines Bootstrap and Jackknife resampling techniques, to reduce the effect of outliers and possible errors in the data set. We perform calculations to identify and eliminate high leverage municipalities, using different variants of Data Envelopment Analysis (DEA), as well as Free Disposal Hull (FDH). Corroborating previous results, efficiency results for the Brazilian municipalities show a clear relationship between the size of the municipality and its efficiency scores. Indeed, under both DEA variants, smaller cities tend to be less efficient than larger ones hence indicating that the quality of the frontier adjustment improves significantly as the size of the municipality increases. We present arguments that may explain to some extent these findings, such as economies of scale and the excess spending due to revenue from royalties. However, such effects require further, more careful examination.     

THE MEASUREMENT OF PRODUCTIVITY AND MARKET STRUCTURE IN THE UK

This paper explains how the Solow residual should be adjusted to provide a correct measure of productivity when markets are not perfectly competitive. Although the null hypothesis of a unity markup coefficient can not be rejected, values greater than one also lie within the confidence interval. Hence the adjustment for imperfect competition should be carried out. The finding that the average mark-up coefficient in the UK is lower than in the US might reflect the higher degree of intra-EC import competition.     

The struggle for space: Past and future of the space race

This article is geared toward shedding some more light on what may be the next space race and its contours.Space flight is undoubtedly a human achievement of the second half of the 20th century, and probably the most audacious one of the past century. The space race started suddenly in the 1950s and has grown explosively during the following two decades, but decreased steadily after the 1970s. After the 1990s, however, we have seen a shy rebirth of space-related activities, when many other actors (states) entered the stage, adding up to the agonizing role of the two-actor piece that we have witnessed during the so-called Cold War.The opening years of the 21st century provided a more complex narrative for space exploration. At the start of the new millennium a new technosphere [1] emerged, dominated by what is used to be called as the Information and Communications Technologies (ICT), with the Internet playing the leading role among the bandwagon of technological novelties that appeared during the twilight of space activities. In despite of the fact that artificial satellites represent the very backbone of the global communications system, space activities seem to play a secondary role amidst the apparently accelerated rate of change concerning the technological systems of the present technosphere. But, as it is demonstrated in this paper, things are changing, and very probably a renewed space race will unfold in the coming decades.A question may be placed: what happened? Why the Earth stood still with regard to the race toward the cosmos? Answer: futurists, even prestigious ones like Herman Kahn and Arthur Clarke, did not consider the existence of socioeconomic long waves (Kondratieff waves, or K-waves for short) with their two decades long economic downturn, which has contributed to the deceleration of space-related activities.Analyzing the worldwide evolving scenario of space-related activities during the last eighty years under the framework of the succeeding K-waves and applying some technological forecasting tools, namely the logistic analysis, technological surveillance and intensive data mining, scrutinizing more than 7500 events occurred in the period 1930–2010 related with space activities, it is demonstrated that the space race like the one that we have witnessed until now is a natural growth process that has saturated at the dawn of this century. The same analysis demonstrates that a new growth process in this field might be nowadays under way with contours very different from that imagined by futurists and science fiction writers sixty years ago. Also the main trends in the usage of launching vehicles and satellites are framed and discussed in this paper.     

The relationship between total factor productivity growth and employment: some evidence from a sample of European Regions

This paper provides a structural estimation of an equilibrium matching model with exogenous productivity growth on a sample of European Regions for the period 1976–2000. Using a three-stage least squares procedure, I estimate a simultaneous equation model for employment, wages and capital stock. The importance of the study of the relationship between growth and employment is due to the fact that the sign of this connection is not clear-cut. Theoretical models imply that the impact of productivity on employment is ambiguous. Furthermore, the empirical contributions are still not so many to reach a strong conclusion on the sign of the relationship above. This paper finds that the impact of productivity growth on employment is negative in the short-run and this effect remains negative even in the long-run. The implication of my results is that all new technology is embodied in new jobs and job creation plays no role in the employment dynamics of the sample I have considered.     

Ecosystem Service Value and Agricultural Conversion in the Amazon: Implications for Policy Intervention

We explore the welfare implications of agricultural expansion in the Brazilian Amazon by comparing spatially explicit estimates of soybean rents and the value of ecosystem services. Although these estimates are generated from different datasets, models, and estimation techniques, the values are comparable, such that the value of ecosystem services is greater than soybean rents for about 61% of the total area and 24% of the area where soybean rents are positive if protected areas are well enforced. Based on the balance between the benefits and costs of conversion, failure to value ecosystem services reduces total social welfare by 7.13 billion dollars annually relative to an optimum. Policy instruments that internalize the value of ecosystem services via protected lands, land conversion taxes, conservation subsidies, or excise taxes can avoid much of this loss. Regardless of intervention regime, policy makers should be cognizant of the diminishing net benefits of converting natural ecosystems to agriculture. Realizing the final 3.8% requires the conversion of an additional 15% natural ecosystems to soybean production.     

The effectiveness of interactive professional learning experiences as a pedagogical tool: Evidence from an audit setting

This paper describes an interactive professional learning experience (IPLE) and provides guidance for implementing an IPLE in an audit classroom. The IPLE described in this paper exposes students to a realistic practice environment within the classroom by bringing practitioners together with students in a professional supervisory setting. Practitioners review students’ work and then meet with students one-on-one to provide feedback on their work. We also document evidence of the pedagogical value of an IPLE by using a between-subjects experimental design in which learning outcomes for participants are compared to a control group that received the same instructions and completed the same written assignment, but did not participate in the professional interaction. In addition, pre- and posttests of students’ audit knowledge allowed for a within-subjects self-assessment of knowledge acquisition. The results strongly suggest that participation in the IPLE improves students’ performance on a skills test of relevant audit material and increases their self-perceptions of knowledge gained. In addition, results indicate that both students and audit professionals consider the IPLE a positive professional learning experience.     

A study of firms surrounding the threshold of Sarbanes–Oxley Section 404 Compliance

This study examines whether firms surrounding the Sarbanes–Oxley Section 404 market value compliance threshold behave opportunistically to reduce their market value to avoid compliance with Section 404. We find evidence that those firms reduce their market value temporarily during threshold measurement quarters, whereas control firms experience increasing market value. We find strong evidence of dampened stock returns and some evidence of insider trading as means to reduce the float. Additionally, we find that downward earnings management is used as a mechanism to alter investors’ expectations of firm value in order to temporarily reduce stock prices. We consider this opportunistic evidence of regulatory avoidance. Finally, we find that the likelihood of avoidance increases with the power of the CEO and decreases with the strength of the monitoring of the CEO, which suggest that avoidance is more likely to happen in firms with poor corporate governance mechanisms.