Financial market stability—A test

This paper proposes a definition for financial market stability and an econometric test. It analyzes the impact of systematic and systemic shocks on developed and emerging market stock indices in normal and extreme market conditions. Financial market stability is defined as a constant impact of systematic shocks in normal and extreme market situations. Empirical results show that the impact of systematic shocks is significantly larger in extreme market conditions than in normal conditions for emerging markets. In contrast, the relationship is stable for developed markets. Hence, only developed markets meet an essential condition for financial market stability.     

Corporate Social Responsibility,Product Differentiation Strategy and Export Performance

This article examines why an organization might wish to manage workplace romance, and describes a number of alternative approaches to managing dating. At first sight the ethics of dating bans balances the need to protect female employees from harassment against employee rights to privacy and freedom of association – a rights versus rights issue. However, dating bans seem not to be directed at protecting female employees from harm, but rather protect employers from sexual harassment liability claims – an employer self-interest versus employee rights issue. This article advocates a consequentialist approach to the problem, via the factoring in of other harms caused by prohibiting workplace romance. Given that most workplace romances end up in marriage or long-term partnerships, a ban on workplace romance is argued to be antisocial. The incidence of sexual harassment is very low in comparison to the number of long-term relationships initiated in the workplace. This article concludes by citing examples of firms that encourage romance, showing that is feasible to manage any resulting problems within these firms’ existing conflict of interest and sexual harassment rules.     

The moderating impact of internal social exchange processes on the entrepreneurial orientation–performance relationship

This paper applies a social exchange perspective to understand the internal contingencies of the relationship between entrepreneurial orientation (EO) and performance. It focuses on two aspects of social interactions among functional managers (procedural justice and trust), as well as on their organizational commitment, as potential enhancements to the firm's successful exploitation of entrepreneurial opportunities. A study of 232 Canadian-based firms finds several positive moderating effects: The EO–performance link is stronger for higher levels of procedural justice, trust, and organizational commitment. In addition, consistent with a systems approach to organizational contingencies, the EO–performance relationship is stronger when the organization's social context comes closer to an “ideal” configuration of procedural justice, trust, and organizational commitment that is most conducive to knowledge exchange within the organization. The study's implications and future research directions are discussed.     

Correlation smile matching for collateralized debt obligation tranches with α-stable distributions and fitted Archimedean copula models

As an extension of the standard Gaussian copula model to price collateralized debt obligation (CDO) tranche swaps we present a generalization of a one-factor copula model based on stable distributions. For special parameter values these distributions coincide with Gaussian or Cauchy distributions, but changing the parameters allows a continuous deformation away from the Gaussian copula. All these factor copulas are embedded in a framework of stochastic correlations. We furthermore generalize the linear dependence in the usual factor approach to a more general Archimedean copula dependence between the individual trigger variable and the common latent factor. Our analysis is carried out on a non-homogeneous correlation structure of the underlying portfolio. CDO tranche market premia, even throughout the correlation crisis in May 2005, can be reproduced by certain models. From a numerical perspective, all these models are simple, since calculations can be reduced to one-dimensional numerical integrals.     

Econometrics with Octave

GNU Octave is an open‐source implementation of a (mostly Matlab compatible) high‐level language for numerical computations. This review briefly introduces Octave, discusses applications of Octave in an econometric context, and illustrates how to extend Octave with user‐supplied C++ code. Several examples are provided. Copyright © 2000 John Wiley & Sons, Ltd.     

Resentful and religious: How religiosity can mitigate the detrimental effects of workplace embitterment on helping behaviors

This study aims to establish how employees' experiences of workplace embitterment may direct them away from voluntary efforts to help coworkers, mediated by emotional exhaustion and moderated by religiosity. Three rounds of survey data, collected from employees and their supervisors in various Pakistani organizations, reveal that a sense of being emotionally overburdened by work links rancorous feelings due to negative work events with tarnished helping behavior, mitigated by employees' ability to draw on their religious faith. As an original contribution, this research addresses the effect of an actually felt negative emotion (workplace embitterment), instead of a source of emotional hardship, on employees' propensity to halt extra-role work efforts; it also describes how the personal resource of religiosity influences this process.     

The Role of Cultural and Symbolic Capital in Entrepreneurs' Ability to Meet Expectations about Conformity and Innovation

We conceptualize entrepreneurs' success in acquiring resources as the outcome of a socially embedded process of pursuing legitimacy, which in turn encompasses their ability to meet field incumbents' expectations about conformity and innovation. Drawing from Bourdieu's theory of practice, we specifically discuss entrepreneurs' ability, when entering a business field, to simultaneously conform to existing field arrangements (i.e., to "fit in") and to be perceived as innovators (i.e., to "stand out"). A possible paradoxical relationship marks entrepreneurs' ability to meet both of these expectations; we discuss the role of entrepreneurs' cultural and symbolic capital in this process. In addition, two contingency factors may influence how entrepreneurs' ability to fit in and stand out affects their resource acquisition. First, the contribution of the two facets of legitimacy to resource acquisition is influenced by the maturity of the field the entrepreneur enters. Second, entrepreneurs' resource acquisition may be enhanced by their ability to artfully navigate the possible conflicting demands to fit in versus stand out through impression management.