Non-fully invested derivative-free bond index replication

The problem we address here is the replication of a bond benchmark when only a fraction of the portfolio is invested for the replication. Our methodology is based on a minimization of the tracking error subject to a set of constraints, namely (1) the fraction invested for the replication, (2) a no-short-selling constraint, and (3) a null-active-duration constraint, the last of which may be relaxed. The constraints can also be adapted to accommodate the use of interest rate and bond futures. Our main contribution, however, is our derivative-free approach to replication, which should prove very useful for managing assets when the use of derivatives is prohibited, for instance, by certain investors. We can, thus, still benefit from replicating a traditional investment in a bond index with a fraction of the portfolio according to our risk appetite. The rest of the portfolio can be invested in alpha-portable strategies. An analysis without the use of derivatives over the period from January 1, 2008 to October 3, 2011 shows that with 70–90 % invested for the replication, the annualized ex-ante tracking error can range from 0.41 to 0.07 %. We use principal component analysis to extract the main drivers of the size of the tracking error, namely, the volatility of and the differential between the yields in the objective function’s covariance matrix of spot rates. These results highlight our contribution of a generic and intuitive yet robust approach to bond index replication.     

The impact of international experience on objective and subjective career success in early careers

There is an ongoing debate in the literature on the long-term impact of international work experience on future career success. In this longitudinal study based on university graduates, we compare expatriates (n = 159), repatriates (n = 395) and domestic employees (n = 2697) with regard to their objective and subjective career success during the first five years of their careers. Results from propensity score matching and ordinary least-squares regressions show that expatriates and repatriates have a higher objective career success in terms of monthly wages. We further find a higher subjective career success for expatriates and male repatriates.     

The State of Research on Information Systems Success

Measuring information systems (IS) success is of great interest to both researchers and practitioners. This article examines multidimensional approaches to measuring IS success and explores the current state of IS success research through a literature review and by classifying articles published between 2003 and 2007. Based on a total of 41 academic journal and conference publications, the relevant research carried out is identified, while the research results are categorized, consolidated, and discussed. The results show that the dominant empirical research analyzes the individual impact of a certain type of information system by ascertaining users’ evaluation of it by means of surveys and then applying structural equation modeling. The DeLone and McLean information systems success model is the main theoretical basis of the reviewed empirical studies. This article provides researchers with a comprehensive review and structuring of IS success research. Furthermore, opportunities for additional development are identified and future research directions suggested.     

The impact of international portfolio composition on consumption risk sharing

Recent empirical work has shown that ongoing international financial integration facilitates cross-country consumption risk sharing. These studies typically find that countries with high equity home bias exhibit relatively low international consumption risk sharing. We extend this line of research and demonstrate that it is not only a country's equity home bias that prevents consumption risk sharing. In addition, the composition of a country's foreign asset portfolio plays an important role. Using panel-data regression for a group of OECD countries over the period 1980–2007, we show that foreign investment bias has additional explanatory power for consumption risk sharing.     

Applying Person‐Environment Fit Theory to Identify Personality Differences between Prospective Social and Commercial Entrepreneurs: An Explorative Study

Research has started to investigate personality traits of social entrepreneurs because such traits in commercial entrepreneurs have been found to affect new venture creation/success. In this exploratory study, we apply the person‐environment fit theory and analyze specific social entrepreneurial personality dimensions (i.e., altruism, empathic concern, personal distress, compassion), and classical entrepreneurial personality dimensions (i.e., need for achievement (nAch), entrepreneurial self‐efficacy (ESE), general self‐efficacy, risk‐taking propensity) to identify differences between prospective social and commercial entrepreneurs. Using a sample of 85 prospective entrepreneurs, results show that prospective social entrepreneurs differ from prospective commercial entrepreneurs in the personality dimensions of personal distress, nAch, ESE, and risk‐taking propensity.     

From Malthus to Modern Growth: Can Epidemics Explain the Three Regimes?*

We model demographic and economic long‐run development in a setting where mortality is endogenous and subject to epidemic shocks. The model replicates the full transition from Malthusian stagnation to modern growth. Consistent with the historical facts, the economy also passes an intermediate post‐Malthusian phase where growth rates of both population and per capita income increase simultaneously, as mortality rates fall and become less volatile. The escape from the Malthusian trap is the result of a series of mild epidemic shocks, making it inevitable at some stage, but its timing random. Calibrations show that it can differ by thousands of generations, absent differences in exogenous parameters.     

Ethnic Diversity,Civil War and Redistribution*

In a game‐theoretic framework, we analyse the circumstances under which self‐enforcing redistribution and power‐sharing coalitions can be used to peacefully resolve ethnic conflict. The existence of a pacific equilibrium depends crucially on ethnic diversity (the number of ethnic groups). The risk of civil war is comparatively high at intermediate levels of ethnic diversity. The risk is low if a society is either very homogeneous or very diverse. Predictions of the model are consistent with evidence on the incidence of civil war.