Volatility transmission in the UK equity market

In this study, the three-factor model of Fama and French and the ‘characteristic model’ of Daniel and Titman are tested using the French Stock Market. Stocks are ranked by size and book to market ratio and then by ex-ante β, HML or SMB loadings. Based on average returns, results reject the factor model with ‘characteristic balanced’ portfolios. In contrast, in time-series regressions, results are consistent with the factor pricing model and inconsistent with the characteristic-based pricing model. Because the value premium is small, conclusions must be interpreted carefully. However, size and market premiums allow more powerful tests of the two models.     

The number of securities giving the maximum return in the presence of transaction costs

An essential element of any realistic investment portfolio selection is the consideration of transaction costs. Our purpose, in this paper, is to determine the maximum return and the corresponding number of securities to buy giving such return, whenever practical constraints features related to budget, buy-in thresholds, and transaction costs are taken into consideration. Dealing with the portfolio selection and optimization problem in the point of view of individual investors, we will arrive to get an analytic result, leading to a new and simple alternative solution to heuristic algorithms. Moreover, this result can be considered as another approach to integer optimization.     

Economic Freedom and Women's Emancipation in the MENA Region

The position of women in the Middle East and North Africa (MENA) region is a complex topic, difficult to comprehend without allowing for socio‐cultural norms, legal frameworks and the global gender context. In thinking about a practical framework for action, the free market perspective is relevant and necessary. However, this alone does not seem to provide a complete answer to the problem of promoting women's economic status. This article makes the case for the importance of market‐friendly, but also gender‐sensitive, policies to promote women's economic freedom and hence women's emancipation in the MENA region.     

Customers' participation in product development through crowdsourcing: Issues and implications

This paper focuses on customers' participation in a product development process through crowdsourcing practices. Results from five case studies of consumer goods companies suggest that the implementation of crowdsourcing operations affects the components of an existing business model and requires rethinking the marketing function. Moreover, despite some organizational constraints and fears, crowdsourcing generates a win–win relationship, creating value for both firms and customers. However, the findings reveal two negative consumer reactions to crowdsourcing practices, i.e., feelings of exploitation and being cheated, that may jeopardize their success. The results suggest the need to establish an open business model based on crowdsourcing.