Asymptotic optimal investment under interest rate for a class of subexponential distributions

We consider a classical risk model with the possibility of investment and positive interest rate for the riskless bond. The stock price movement is modelled as a geometric Brownian motion, the claim sizes are assumed to have a distribution belonging to a certain subclass of subexponential distributions. In this setting, we study the asymptotic behaviour of the optimal investment strategy under the ruin probability as a risk measure. This problem has been already considered before, but no results were obtained, for instance, for Weibull and Benktander-type-II distributions with certain parameters. We introduce a method which closes this gap.     

The Iterated Cte

Abstract

In this paper we present a method for defining a dynamic risk measure from a static risk measure, by backwards iteration. We apply the method to the conditional tail expectation (CTE) risk measure to construct a new, dynamic risk measure, the iterated CTE (ICTE). We show that the ICTE is coherent, consistent, and relevant according to the definitions of Riedel (2003), and we derive formulae for the ICTE for the case where the loss process is lognormal. Finally, we demonstrate the practical implementation of the ICTE to an equity-linked insurance contract with maturity and death benefit guarantees.     

Labor Flexibility,Ownership and Firm Performance in China

Developed and developing countries alike areprivatizing or corporatizing state owned enterprises(SOEs), often citing the flexibility to hire and shedlabor as an advantage. However, there is littleempirical evidence on the extent to which thisimproves firm performance. This paper investigates thelinkage between labor flexibility, ownership and firmperformance using China as a case study. We find thatSOEs are much less able to adjust quickly to demandshocks than are other ownership forms and that thedegree of worker input into hiring and firingdecisions slows the ability of firms to adapt,negatively affecting firm performance.     

Producer Services, Manufacturing Linkages, and Trade

Working with a mix of panel data on goods and services trade for the OECD for 1994–2004, combined with social accounts data (i.e. data on intermediate linkages) for 78 countries benchmarked to the panel midpoint, we examine the role of services as inputs in manufacturing, with a particular focus on indirect exports of services through merchandise exports, and also on the related interaction between service sector openness and the overall pattern of manufacturing exports. From the cross-section, we also develop a set of stylized facts linking services to the level of development and the density of intermediate linkages. We find significant and strong positive effects from increased business service openness (i.e. greater levels of imports) on industries like machinery, motor vehicles, chemicals and electric equipment, supporting the notion that off-shoring of business services may promote the competitiveness of the most skill and technology intensive industries in the OECD. Conversely, we find evidence of negative general equilibrium effects for sectors that are less service intensive.     

Start-up Capital, Microenterprises and Technical Efficiency in Mexico

Access to adequate start‐up capital has been identified as an important deterrent to microenteprise development and growth. Using firm level data from Mexico's National Survey of Microenterprises, we estimate a stochastic frontier production function with inefficiency effects related to the main sources of start‐up capital. Microenterprises utilizing bank loans, carryover business capital, moneylenders and credit from clients and suppliers are more technically efficient than those relying on family, friends and on own financial sources. Bank loans led to the highest degree of technical efficiency, indicating a well‐functioning screening process despite information asymmetries. Banks tend to offer the largest average loan size with the longest terms which are significant factors in allowing microentrepreneurs to overcome financing constraints.     

Leader support for gender equity: Understanding prosocial goal orientation,leadership motivation,and power sharing

We focus on how interpersonal characteristics should influence leader support for gender equity in organizations. Recognizing gender disparities in organizations and the “labyrinth” that women face when they advance in their careers (cf. Eagly & Carli, 2007), we develop a model for how interpersonal characteristics of leaders, both men and women, influence power construal and thus their use of empowerment, mentoring, and performance feedback, ultimately affecting career opportunities for women in organizations. The model proposes that leaders who are high on communal goal orientation, a prosocial characteristic, are more likely to construe power through a responsibility lens and behave in ways that ultimately support gender equity in organizations. In contrast, leaders with an exchange goal orientation are more likely to construe power through a freedom lens and behave in ways that are self-serving. Prestige motivation will increase the extent to which leaders, especially those who are communally oriented, share power. Dominance motivation will increase the extent to which leaders, especially those who are exchange oriented, act in self-interest and retain power, ultimately imposing barriers to women's career advancement. Organizations can potentially increase leader power sharing by encouraging and reinforcing leaders' prosocial characteristics of communal orientation and prestige motivation. Implications for research and practice are discussed.     

Impact of public involvement in research on quality of life and society: a case study of research career trajectories

This case study illustrates the research career trajectory of two lay researchers after they joined a Big Lottery funded study to explore loneliness and isolation among older people living in a town in the north of England, UK. The two lay researchers were of pensionable age themselves and engaged in all aspects of the research process as full members of the research team. Following research methods training and their substantive input into study design, they engaged fully in an approach of peer‐interviewing of other older adults as the main study method. Following this initial exposure to undertaking research, these exemplars of public involvement in research went on to be involved in other research as co‐researchers at a local and national level. Initially the paper sets out the lay researchers' personal backgrounds and expectations from involvement in research. The impact of their involvement in research on their quality of life and that of their community is presented. Latterly, the societal impact of the lay researcher's involvement is examined. The difference they made to the initial study design and conduct is described first followed by their development as substantial research resources for other studies and community initiatives. Overall the impact of these lay researchers has been significant and the paper provides an example of how involvement in research can impact on individuals and communities to great effect.     

HIGH AND LOW EARNINGS JOBS: THE FORTUNES OF EMPLOYERS AND WORKERS

The focus of the literature on the effect of job changes has been on the consequences of job destruction on the individual worker. In this paper we analyze the impact on the earnings distribution of both job creation and job destruction. We establish a link between job reallocation and the movement of workers into and out of the tails of the earnings distribution. Both job creating and job destroying employers shed jobs mostly from the middle and lower tails of the earnings distribution, although this is cyclically very sensitive. Labor mobility (triggered by job reallocation) is risky: mobile workers will generally end up in the upper or lower tail of the distribution rather than in the middle. If workers move across industry boundaries, they typically move to the lower tails of the distribution. In sum, the fortunes of workers depend on the fortunes of their employers.     

The use of corporate social disclosures in the management of reputation and legitimacy: a cross sectoral analysis of UK Top 100 Companies

Recent years have witnessed an escalation in corporate social reporting (CSR) by UK companies (Gray, Kouhy and Lavers 1995). Whilst some elements of CSR reporting are required by law, much of it represents voluntary reporting. By investigating the non‐mandatory reporting of two aspects of social responsibility, corporate community involvement (CCI) and environmental impact, this paper seeks to explore why companies choose to make such disclosures. It specifically asks whether companies are primarily motivated by the strategic need to manage their reputation and legitimacy rather than by the recognition of their ethical accountability, which is the stated purpose of reports produced by cutting edge companies (Clarke 1998).