An investigation of the weekend effect during different market orientations

Studies of stock returns over short horizons indicated irregularities in returns, the weekend effect, and consequently the notion of market efficiency has been questioned. Despite extensive research on the weekend effect, little research has been conducted to define the prominence of the seasonal anomaly in Bear markets versus non-Bear markets. In the paper the weekend effect is investigated for daily returns in the Dow Jones Industrial Average (DJIA), the S&P 500, and the NASDAQ for Bear and non-Bear markets. Results support a weekend effect but only during non-Bear market orientations and a possible day-of-the-week effect during Bear and non-Bear markets.     

Schumpeterian Dynamics Versus Williamsonian Considerations: A Test of Export Intermediary Performance

Using a sample of export intermediaries connecting domestic producers and foreign buyers, the study tests competing hypotheses on firm performance derived from the Austrian and transaction cost perspectives. Specifically, the Austrian perspective suggests that the more distant the export market and the more complex the product that the intermediary specializes in, the better its performance. Transaction cost theory, on the other hand, offers conflicting predictions. Our results indicate that these two theories are complementary to each other, and a contingency framework is proposed and discussed.     

TRUE UPPER BOUNDS FOR BERMUDAN PRODUCTS VIA NON-NESTED MONTE CARLO

We present a generic non-nested Monte Carlo procedure for computing true upper bounds for Bermudan products, given an approximation of the Snell envelope. The pleonastic "true" stresses that, by construction, the estimator is biased above the Snell envelope. The key idea is a regression estimator for the Doob martingale part of the approximative Snell envelope, which preserves the martingale property. The so constructed martingale can be employed for computing tight dual upper bounds without nested simulation. In general, this martingale can also be used as a control variate for simulation of conditional expectations. In this context, we develop a variance reduced version of the nested primal-dual estimator. Numerical experiments indicate the efficiency of the proposed algorithms.     

TAUX D'INTERET EFFECTIF, VIABILITE FINANCIERE ET FINANCEMENT DES PETITS OPERATEURS ECONOMIQUES PAR LES INSTITUTIONS DE MICROFINANCE AU BENIN

RÉSUMÉ ** :  Les institutions de microfinance (IMF) ont accompli le miracle de faciliter l'accès aux services financiers à des milliers d'exclus du système bancaire classique dans les pays en développement. Mais une polémique naît quant aux coûts élevés associés auxdits services. Cette étude a évalué le niveau de taux d'intérêt viable pour la microfinance en termes d'offre de services financiers. Les résultats montrent que les micro-projets dont le taux de rentabilité interne ne dépasse pas 42% ne pourraient être financés par les institutions de microfinance. Quasiment aucune IMF n'assurerait son autosuffisance opérationnelle, donc sa pérennité en respectant le seuil légal fixéà 27%.     

PERSPECTIVE: first,fast, and on time: the path to success. or is it?

To be competitive, and become the industry leader, the firm needs to be fast, first, and on time, or so the story goes. Fast development cycle times, first to market, and schedule predictability are the three basic principles of new product development performance, but what does the evidence actually show? A review of current research, schedule performance data, and cycle time data shows that following these principles does not necessarily lead to success. Recent studies indicate that being first to market is not necessarily any better than being second, third, or even fifth. Several leading companies in the fast cycle time movement are rethinking their first-to-market strategy, and some are deliberately lengthening their cycle times. Finally, the correlation between schedule accuracy and business results is practically nonexistent in the product lines reviewed for this article. The evidence found while researching this article has led the authors to recast these three traditional principles into three new market-focused guiding principles: effective market introduction timing, first to mindshare, and managed responsiveness. To provide direction in applying these three principles, three types of market windows are defined: imposed, controllable, and emergent. How one approaches each of the three guiding principles is driven by which type of market window the organization is operating within, and other business characteristics, such as market position and the ability to differentiate.     

The Relevance of XBRL Voluntary Disclosure for Stock Market Valuation: The Role of Corporate Governance

The aim of this paper is to investigate the relevance for stock market pricing of accounting earnings of voluntary disclosures in XBRL files considering the quality of corporate governance. Results are the following. It appears that XBRL extensions attract financial analysts. Good governance is positively associated with voluntary XBRL extensions. We observe that XBRL extensions enhance the positive relationship between accounting earnings and stock price. However, this positive association is reduced for firms with good governance, suggesting a substitution effect between XBRL extensions and corporate governance. Finally, it appears that XBRL extensions would strategically be related to earnings quality. This research highlights the importance to consider governance when assessing the value relevance of XBRL disclosures for stock market pricing.     

Contents of Volume 4

Volume Contents

Contents of Volume 4     

Wealth Effects of Rare Earth Prices and China’s Rare Earth Elements Policy

This article identifies power, subjectivity, and practices of freedom as neglected but significant elements for understanding the ethics of social entrepreneurship. While the ethics of social entrepreneurship is typically conceptualized in conjunction with innate properties or moral commitments of the individual, we problematize this view based on its presupposition of an essentialist conception of the authentic subject. We offer, based on Foucault’s ethical oeuvre, a practice-based alternative which sees ethics as being exercised through a critical and creative dealing with the limits imposed by power, notably as they pertain to the conditioning of the neoliberal subject. To this end, we first draw on prior research which looks at how practitioners of social enterprises engage with government policies that demand that they should act and think more like prototypical entrepreneurs. Instead of simply endorsing the kind of entrepreneurial subjectivity implied in prevailing policies, our results indicate that practitioners are mostly reluctant to identify themselves with the invocation of governmental power, often rejecting the subjectivity offered to them by discourse. Conceiving these acts of resistance as emblematic of how social entrepreneurs practice ethics by retaining a skeptical attitude toward attempts that seek to determine who they should be and how they should live, we introduce three vignettes that illustrate how practices of freedom relate to critique, the care for others, and reflected choice. We conclude that a practice-based approach of ethics can advance our understanding of how social entrepreneurs actively produce conditions of freedom for themselves as well as for others without supposing a ‘true self’ or a utopian space of liberty beyond power.