Size and Power of the Error Correction Model Cointegration Test. A Bootstrap Approach

The size and power of the ECM cointegration test are investigated by using the 'bootstrap critical values'. The purpose of this paper is to show the ability of the bootstrap technique to produce critical values which are much more accurate than the asymptotic ones. The properties of the test have been studied, using Monte Carlo methods, for three different data generating processes. As regards the size of the test, we find that the ECM cointegration test together with the bootstrap critical values perform better than the ECM cointegration test based on the asymptotic critical values. While as regards the power of the tests, the results prove to be similar for the different versions.     

Household food consumption in Turkey: a comment

We comment on a recent important article by Akbay et al. anddiscuss some methodological and estimation issues arising fromtheir paper. We then suggest alternative procedures that mayhelp improve their estimates and thereby enhance their usefulnessas a basis for food policy and marketing decisions.     

ON CONSUMERS' VALUATION OF NUTRITION INFORMATION

The European Union (EU) is contemplating regulations requiring mandatory provision of nutritional information on food products. This study analyses consumers' valuation of nutritional information using data collected from a field survey. The results generally suggest that consumers value and are willing to pay about 5.9 percent of the original price for nutritional information on the food product we studied. Individuals who are non-price-sensitive, nutritionally knowledgeable and with longer time horizon are willing to pay more for nutritional information than others. Considering consumers' willingness to pay for nutritional information on food products and an EU impact assessment study, the costs of provision of this information are not prohibitive to firms. We estimate that the least conservative cost of labelling to the firm for a specific food product can be as much as €29,431, whereas the average economic value of nutrition information is estimated at €17,064. The firm can therefore recoup the associated costs in less than two months.     

Uncertainty in the public debt market and stochastic long-run growth

In a continuous time model, a representative household has to allocate its investment and consumption in an optimal manner under conditions of uncertainty. In the present study it is hypothesized that there are two types of assets: a risk-free and a risky asset. The risk-free asset is assumed to be the physical capital, while at the same time uncertainty is allowed to result from the exogenous random variations in the public debt market, rendering in this way government bonds to act as the risky asset. In the endogenous growth framework with productive public investment, the expected long-run growth rate, the dynamic path of consumption as well as the optimal allocation of investment between a risky and a riskless asset, are analytically derived. This kind of treatment allows us to create a locus for the long-run growth over the various levels of uncertainty. The outcome of the analysis is that a rise in uncertainty impacts negatively upon the long-run growth rate. In order to empirically assess the relationship between growth and uncertainty, we lay our emphasis on the US economy for the period 1957:1 to 2008:4. Within the framework of a bivariate BEKK–GARCH(1,1)-M model a significant negative relationship between uncertainty and economic growth has been established.     

The demand for selected nutrients by Greek households: an empirical analysis with quantile regressions

The article uses information from the 1993–1994 Household Consumption Survey and the semiparametric quantile regression approach to analyze the demand for three macronutrients (carbohydrates, proteins, and fats) and three micronutrients (minerals, vitamins, and cholesterol) in Greece. According to the empirical results the age of the household head, the degree of urbanization, the percentage of food expenditure devoted to food away‐from‐home, and the per capita consumption expenditure affect the intakes of nutrients across all the five quantiles considered. The impact, however, of the household head's gender and the impact of his (her) educational achievement are located only at the lower and the higher quantiles, respectively. The expenditure elasticities are substantially lower than unity, suggesting inelastic responses of nutrient intakes to per capita consumption expenditure.     

Corporate Political Activities and the SEC's Oversight Role in the IPO Process

We study how a regulator (Securities and Exchanges Commission; SEC) responds to IPOs that have a higher political profile. We find that IPOs with issuers (intermediaries) that actively pursue political strategies receive more (less) SEC comment letters than IPOs without such actors. Cross-sectional analysis reveals that the IPO's political environment moderates the relationship between social pressure for more corporate transparency and SEC scrutiny. Additional tests indicate that the political activities of issuers (intermediaries) contribute to a less (more) efficient IPO process. Overall, our findings suggest that politically active intermediaries have stronger incentives to accurately portray the IPO financial reporting environment than politically active issuers because they have greater reputational and political capital at stake; quite simply, the former have more to lose. We draw out the implications for theory, in terms of agency and reputation.     

European common stochastic long-run trends

The paper examines convergence on the European level by using production functions which include capital and labor as factors of production. The methodology is based on principal-components analysis of common trends appropriate for heterogeneous panels. Using data for the 1960–1997 period and alternative specifications, it is found that convergence can be decisively rejected, although the number of common trends is relatively low (about four or five).     

The effect of board composition on the informativeness and quality of annual earnings: Empirical evidence from Greece

This study examines how the informational quality of annual accounting earnings, varies according to the size and composition of the board of directors of publicly listed firms within the Greek capital market. Data analysis over a period of five years (2000-2004) revealed that the informativeness of annual accounting earnings is positively related to the fraction of outside directors serving on the board, but it is not related to board size. Additionally, firms with a higher proportion of outside board members proved to be more conservative when reporting bad news but on the contrary they do not display greater timeliness on the recognition of good news. Finally, firms with a higher proportion of outside directors report earnings of higher quality compared to firms with a low proportion of outside directors. Our results are robust to several sensitivity tests controlling for endogeneity, firm's fixed effects and alternative models for the estimation of discretionary accruals.     

Audit pricing, quality of earnings and board independence: The case of the Athens stock exchange

Prior research has pointed to the importance of the determinants of audit pricing. This paper examines empirically the effect of both audit independence and earnings management on the audit pricing by companies listed on the Athens Stock Exchange. This test is performed in an institutional setting with excessive earnings management and poor corporate governance mechanisms. The results based on a sample of 97 Greek companies for a five-year period (2000-2004), show that there is a positive association between audit independence and auditing pricing. Our results also indicate a positive association between audit pricing and earnings management for the small size companies. Taken together our results suggest that strong governance is related to increased needs for quality assurance services and that the relation between earnings management and audit pricing might indicate potential red flags. Finally, limitations, suggestions for further research and policy implications for regulatory agencies are offered.