Mean–variance and mean–semivariance portfolio selection: a multivariate nonparametric approach

While univariate nonparametric estimation methods have been developed for estimating returns in mean-downside risk portfolio optimization, the problem of handling possible cross-correlations in a vector of asset returns has not been addressed in portfolio selection. We present a novel multivariate nonparametric portfolio optimization procedure using kernel-based estimators of the conditional mean and the conditional median. The method accounts for the covariance structure information from the full set of returns. We also provide two computational algorithms to implement the estimators. Via the analysis of 24 French stock market returns, we evaluate the in-sample and out-of-sample performance of both portfolio selection algorithms against optimal portfolios selected by classical and univariate nonparametric methods for three highly different time periods and different levels of expected return. By allowing for cross-correlations among returns, our results suggest that the proposed multivariate nonparametric method is a useful extension of standard univariate nonparametric portfolio selection approaches.     

Enhancing Students' Enabling Competencies: Student Perspectives and Recommendations for Educators*

Employers continue to express concern that accounting graduates lack the necessary competencies when they enter the workplace. These concerns have been addressed in part by periodic revisions to Chartered Professional Accountants of Canada's (CPA Canada) CPA Competency Map, which is used to define competencies for entry into the profession. The CPA Competency Map has recently been revised to include a new set of enabling competencies (often called generic or soft skills). However, the accounting literature highlights a concern that time and resources spent on the expanding set of enabling competencies could take valuable resources away from teaching technical accounting skills. In addition, the education literature indicates that student motivation plays a key role in learning. If students are motivated to learn enabling competencies, then educational efforts could be more efficient and effective. Conversely, a lack of student motivation could reduce student engagement and learning. To address these concerns, we investigated the student's perspective on the importance of enabling competencies as well as on how and where enabling competencies should be learned. We surveyed 380 students enrolled in the CPA Canada Professional Education Program (PEP). We investigated the three new enabling competencies that are most distinct from the previous set of competencies and that may be the most difficult for accounting educators to teach: adaptability and resilience; creativity and innovation; and active listening. We asked students about the importance of these new enabling competencies for their future careers and whether the competencies should be taught in PEP or in the workplace. Our results indicate that students believe that the new enabling competencies are important and should be learned in both the classroom and the workplace. Moreover, student responses to open-ended questions provide educators with suggestions on how to incorporate enabling competencies into the classroom by blending activities that could simultaneously enhance enabling competencies with technical competencies.     

International Corporate Governance and Finance: Legal,Cultural and Political Explanations

We investigate the disparity and the determinants of investor protection around the world and their impact on financial market development. More specifically, we build on Williamson's (2000) new institutional economic model to explain this disparity using legal, political and cultural variables. In 2006, the World Bank established an index to measure the disparity of investor protection regulations across 81 emerging and developed countries. Our results confirm that combining classifications based on legal systems, cultures and polities is important in explaining the disparity of investor protection and market capitalization around the world. In particular, we show that the classical regression analysis is not well suited to approach this question because it gives mitigated results. However, the mediation analysis is more cohesive with our conceptual model: we confirmed an indirect effect through a path analysis involving investor protection as a mediator of the relationship between legal systems and culture on the one hand and stock market capitalization on the other hand. Nevertheless, the polity factor was shown to have only a direct effect on stock market capitalization.     

Entrepreneurship and income inequality: a spatial panel data analysis

The main objective of this paper is to empirically analyze the relationship between entrepreneurship and income inequality. We use a spatial panel data analysis for both 33 high-income countries and 39 middle- and low-income countries over a period of 11 years. Estimation results and rigorous diagnostic analysis suggest that: (i) there is a strong support for the existence of an inverted U-shaped relationship between entrepreneurship and income inequality espoused by the Kuznets Curve hypothesis; (ii) the relationship between entrepreneurship and income inequality is negatively moderated by country’s level of economic development; (iii) regardless of income inequality levels, entrepreneurship has a non-linear relationship with income per capita; (iv) gross domestic expenditure on research and development exhibits significant negative impacts on entrepreneurship; (v) significant mixed effects on the likelihood of entrepreneurial activity are observed with governance, globalization, population growth rate, and competitiveness variables; (vi) there are significant mixed feedback effects on entrepreneurship; and (vii) there are statistically significant, positive as well as negative spatial spillovers to country-level entrepreneurial activity.