Approximating unanimity orderings: An application to Lorenz dominance

Stochastic dominance and Lorenz dominance are examples of orderings which require unanimous agreement among an infinite set of indices. This paper considers various subsets of inequality measures that respect Lorenz dominance, and assesses the extent to which a small number of indices can reproduce the Lorenz ordering. Using income data for 80 countries, our results suggest that Lorenz dominance can be predicted with 99% accuracy using just 3 or 4 inequality measures, as long as two of them focus on the extreme upper and lower tails of the distribution. In contrast, confining attention to the index families and parameter ranges normally considered may fail to detect the majority of occasions when Lorenz curves intersect. These results lead us to question the faith placed in procedures based on a finite set of inequality indices, and to suggest that similar lessons will apply to other types of unanimity orderings.     

Produktgarantien und Aktienkrise — Implikationen für die Kapitalanlagepolitik von Lebensversicherungsunternehmen

The present contribution analyzes the implications of two central factors influencing the asset allocation decision of (German) life insurance companies, the development of the equity market on one hand and the interest rate guarantees included in traditional life insurance products on the other. The adverse development of share prices in 2000–2002 implies the necessity to consider not only ?normal“ volatility but also worst case-developments for the purpose of risk control. Formally this is done by using the risk measures value-at-risk and conditional value-at-risk. The specific ?myopic“ nature of interest rate guarantees in German life insurance products, which are granted on a yearly basis implies — beyond the general control of the shortfall risk with respect to the guaranteed interest rates — the necessity to per-form the asset allocation on a yearly basis to be in conformity with the time horizon of the liabilities.On the basis of a quantitative approach corresponding model calculations are performed. Thereby not only a pure market valuation is considered but also institutional peculiarities (hidden reserves, accounting norms) of German life insurance companies. The possibility of a riskless one-year investment, either based on market values or on balance sheet values, is revealed to be crucial for giving interest rate guarantees on a yearly basis.     

Branding and relationships: Customer and supplier perspectives

This paper explores and investigates the role of branding within financial services. Specifically, the study aims to assess the importance of branding and its associated elements including brand image and brand experience in the relationships that exist between consumers and their financial brands. It aims to achieve this through research, which identifies gaps between the managerial and consumer perspectives on branding in relationships in retail financial services. It is well established that the characteristics of services are different from those of manufactured goods and that service personnel play a central role in the services experience. Moreover, the concept of relationship marketing within services proclaims the importance of one-to-one relationships between businesses and customers as well as relationships between consumers and their brands. Drawing from the fields of brand management, relationship marketing and services marketing, this research aims to investigate the perceptional differences between consumers and suppliers in relation to the importance of branding in financial service relationships. The research findings indicate that brand experience appears to be far more salient than brand image in shaping and building meaningful and lasting brand perceptions and promoting customer retention.     

Mature Australian consumers' adoption and consumption of self-service banking technologies

The slow diffusion of self-service banking technologies (SSBTs) into the mature consumer market necessitates research to understand better this growing section of the population and the diversity that exists within this market. This research analyses the 50+ market through a segmentation approach based on the level of use of SSBTs. Three segments were identified: non-users, low users and medium-to-high users of SSBTs; these are profiled by frequency of use and demographic variables. The medium-to-high user segment embraces a range of SSBTs and uses credit cards to facilitate their financial activities. Non-users and some low users prefer the customary way of conducting transactions and enjoy the personal interaction with the bank employee. These two segments do, however, have a moderate level of credit card use. Finally, a small percentage of diffusion discontinuance was identified in this study of the mature consumer market.