The relationship between tax rates and tax revenues in eurozone member countries - exploring the Laffer curve

We estimate Laffer Curves for direct and indirect taxes for each Eurozone country, using panel data from 1995 to 2011, by means of Seemingly Unrelated Regression (SUR) models. We choose the three taxes that contribute the most to the government tax revenue: the value added tax (VAT), the corporate income tax (CT), and the labour income tax (LT). From our estimated significant parameters, which have the expected signs according to the Laffer Curve theory, we obtained a maximum/optimal tax rate for VAT for Greece, Portugal, and Slovakia and for the majority of the Eurozone countries for direct taxes. We also take into consideration the business cycle. Many countries do not present differences in regime, and when they do, the optimal tax rate is higher during recessions. Finally, we compare the observed tax rates in 2012 to the estimated optimal tax rates, to assess if the 2012 policy was located at the prohibitive range of the Laffer Curve. Our results are important for the discussions about fiscal discipline and harmonization in the Eurozone, since they exhibit important disparities between countries and taxes. We can see that, especially for CT and LT, there is a strong divide between the values of the optimal maximum tax rates for Eastern European countries and Western European economies. Additionally, the economic and financial conditions of each country also influence the value for the tax rate.     

Singapore share recommendations using technical analysis

Recent statistical studies of the Singapore Stock Exchange generally conclude that the market is weak-form efficient. This means that technical analysis or the study of past share prices cannot reliably forecast future prices and lead investors to returns which exceed the market. This article reports on a study of 292 technical analysis-based investment recommendations made over a five year period, November 1979 to April 1984, by a Singapore investment advisory firm. The objective was to test whether this firm was able to use technical analysis to select common share investments which would allow investors to earn an excess return. After adjusting for trading commissions, market trends, and risk, the recommended shares did not outperform the market. Thus, the results correspond with what would be expected in a weakly efficient market.     

Human capital formation in the long run: evidence from average years of schooling in England, 1300–1900

In this paper, I quantify average years of education present in the English population between 1307 and 1900. The estimates are based on extensive source material on literacy rates, number of primary and secondary schools and enrolment figures. An additional distinction is made on the basis of gender and of level of schooling. The trends in the data are indicative of significant increases in the level of educational attainment during the sixteenth and seventeenth centuries. This remarkable growth in schooling was followed by a strong decline in average years of education after ca. 1720. Whilst one in seven boys entered secondary schooling at the end of seventeenth century, this had decreased to one in thirty by the 1880s. Overall, the trends in the data suggest that education was beneficial to pre-industrial economic growth, but this was not sustained following the initial stage of the industrialisation process.     

Inside the black box of high-growth firms in a crisis-hit economy: corporate strategy,employee human capital and R&D capabilities

In an attempt to open the black box of high-growth firms within turbulent economic environments, this paper explores the role of corporate strategy, employee human capital and R&D capabilities in achieving exceptional growth performance in a crisis-hit economy. Relative and absolute growth measures based on both employment and sales are computed utilizing survey data on 1500 firms in the midst of the Greek crisis. Our findings indicate that adopting a geographical diversification strategy significantly increases the likelihood of becoming a fast-growing firm, irrespective of the growth metric used. Entering in diverse product markets and taking advantage of R&D capabilities appear to additionally contribute to relative employment change in HGFs of smaller size. Based on the absolute employment growth indicator, we provide some evidence that HGFs of larger size are able to grow fast through product diversification, acquiring other firms or by investing on training low-skilled employees. Nevertheless, hiring already highly educated persons seems to matter only for sales HGFs, while research collaborations are found to negatively affect the probability of growing fast in terms of sales.

     

The circulation physiology of agroecosystems

This paper represents an effort to enlarge the understanding of the biophysical foundation of agroecosystemsby using an analogy with the circulation of the blood in the human body. The circulation function in the human body canbe represented as arterial pressure. The factors affecting arterial pressure in the human body have direct counterpartsin the cultivation-husbandry system. The relationship between circulation pressure and the factors affecting that pressurein the cultivation-husbandry system are similar to the relationship between the arterial pressure and factors affectingarterial pressure in the human body. Furthermore, circulation resistance in the cultivation-husbandry system can beshown to be analogous to the calculation of peripheral resistance in the human body by Poiseuille’s formula.     

Ethical Differences Between Men and Women in The Sales Profession

This research addresses the question of whether men and women in sales differ in their ethical attitudes and decision making. The study asked 209 subjects to respond to 20 ethical scenarios, half of which were "relational" and half "non-relational." The study concludes (1) that there are significant ethical differences between the sexes in situations that involve relational issues, but not in non-relational situations, and (2) that gender-based ethical differences change with age and years of experience. The implications of these finding for sales organizations are discussed.     

人类活动对生物多样性的影响

The impact of human activity on biodiversity is very complicated, making it difficult to design practical indicators for assessment. Currently, state and response indicators are listed within Chapter 15 of Agenda 21, but no mention is made of driving force indicators and how they relate to biodiversity protection. This paper repre-sents an effort to identify and then operationalize the idea of driving force indicators at national level Five humaninduced factors affecting biodiversity were discussed: (a) habitat loss and fragmentation; (b) overexploitation of resources; (c) species introduction; (d) pollution; and (e) climate change. From these five factors, a subset was selected to serve as possible driving force indicators: (1) habitat loss, (2) the ratio of exotic species to indigenous ones, and (3) the change in pollution status. Although the three indicators are relatively simple, they cover the most important human impacts on biodiversity and offer the potential for further redefinition and ultimate use within the spirit of biodiversity protection.     

The impact of volatility derivatives on S&P500 volatility

This study investigates whether the newly cultivated platform of volatility derivatives has altered the volatility of the underlying S&P500 index. The findings suggest that the onset of the volatility derivatives trading has lowered the volatility of both the cash market volatility and the cash market index, and significantly reduced the impact of shocks to volatility. When big sudden events hit financial markets, however, the volatility of volatility seems to elevate in the U.S. equity market as a result of increased global correlations. Regardless of the period under examination and the estimator employed, long‐run volatility persistence is present. The latter drops significantly when the credit crunch period is excluded from the post‐event date sample period. The correlation between the broad equity index and the return volatility remains low, which in turn strengthens the role of volatility derivatives to facilitate portfolio diversification. The analysis also shows that volatility is mean reverting, whereas market data support the impact of information asymmetries on conditional volatility. In the post‐event date phase, no asymmetries are found when the recent crisis is not accounted for. Finally, comparisons with other international equity indices, with no volatility derivatives listed, unveil that these indices exhibit higher volatility and slower recovery from shocks than the S&P500 index. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 29:1190–1213, 2009     

THE ECONOMIC SCIENCE FICTION OF CLIMATE CHANGE: A FREE‐MARKET PERSPECTIVE ON THE STERN REVIEW AND THE IPCC

The Stern Review and the IPCC believe that anthropogenic climate change is a serious global threat and demands an urgent response. Examining the IPCC's projections of future climate change and Stern's estimates of its costs from a free‐market perspective shows that they are based on flawed methodological assumptions and reflect an excessively optimistic approach to knowledge of the future. The foundations of reliable knowledge for a sound policy framework have not been put in place.     

The Economic Analysis of Industrial Accidents: a re-assessment

Conventional economic approaches to the analysis of industrial accidents utilise the hedonic pricing approach. This approach usually excludes potentially important institutional, sociological and macroeconomic determinants of occupational safety. Initially we identify some of the theoretical and empirical problems with orthodox economic analysis in this area. An alternative model is then formulated which explicitly encompasses a broader range of determinants. Finally, the model is tested using UK industry accident data, the results being inconsistent with the compensating differentials' emphasis of orthodox analysis but supportive of the augmented model.