Uncovering Dimensionality in the Servicescape: Towards Legibility

The type and level of service offered in the service sector is relatively homogenous, and notoriously difficult to distinguish. Company servicescapes are important differentiators and indicators of quality vis-à-vis image and competence. The paper develops an exploratory and conceptual framework that delineates the dimensions of service environments, emphasising those factors that can be successfully manipulated by management. Fieldwork examined a dynamic service environment and analysis revealed that the legibility of the setting (e.g., clear signage and spatial appearance) influenced peoples' moods generally. Analysis suggested that general layouts and legible signage help to induce positive moods, and therefore positive images of the service providers.     

Influences on technology strategy in the uk oil- and gas-related industry network

In the course of the last 25 years the UK has seen the emergence of a new, technologically advanced network of organisations underpinning the technical needs of the oil and gas extraction industry.The euolution of this industy network has taken place within a public policy framework which has had too central objectives: to maximize UK industrial involvement in the industry and to maximize. North Sea oil and gas extraction. The extent to which this framework has encouraged the development of new, technology-based firms has not been systematical stuided. This study examines the extent of indigenous incoltlement in the network and the influence of the currrent pressures of economic and policy changes on the performance and strategic planning of these compnies.     

The Impact of DC Pension Systems on Population Dynamics

Abstract

This study investigates the risk inherent in defined contribution (DC) pension plans on an individual and aggregate basis, based on U.S. data. Our aim is to gain insight into the consequences of a DC pension scheme becoming the predominant pillar of retirement income for an entire society. Using the stochastic simulated output of a DC flexible age-of-retirement model, we first determine the optimal investment strategies. We then examine the demographic retirement dynamics of an entire population of DC pension plan participants.

We observe that even for the most risk-averse plan members there is a high level of uncertainty in an individual’s age at retirement. At the aggregate population level, we find that this uncertainty does not get dampened to any great extent by a diversification effect. Instead, the central role played by the market in determining retirement dates results in significant variation in the dependency ratio (the ratio of retirees to workers) over time. In addition, an attempt to ameliorate the outcome by introducing additional realistic features in the DC population modeling did little to dampen this volatility, which suggests that countries dominated by DC schemes of this type may, over time, be exposed to significant risk in the size of its labor force.     

Modes of biotechnology assessment in the USA,Japan and Denmark

Since the 1970s technology assessment by public bodies has become generally accepted as necessary. Modes of technology assessment differ from country to country, in terms of degree of institutionalization, acceptance by policy makers and level of public involvement, and these in turn depend on the goals, methods and organizational framework of the particular technology assessment. The varying social and political roles of technology assessment arise out of national political traditions and differing cultural views of technology. This article compares modes of biotechnology assessment in the USA, Japan and Denmark, focusing on the role of public discussion in the policy-making process. By analysing these three different contexts, the article seeks to uncover ways in which the cultural conditioning of technology policy takes place.     

Contents of PMM,Volume 29 (2009)

This article appraises the recent UK quantitative easing (QE) monetary experiment. From March 2009 to February 2010, the Bank of England spent £200 billion on gilts and corporate bonds. This experiment represents, as a proportion of GDP, the most ambitious monetary policy ‘mission’ in history. Using several indicators to examine the impact of QE, our analysis leads to a conclusion which, metaphorically, is akin to that ascribed to the 1970 Apollo 13 Moon mission: a ‘successful failure’.     

AIDing contraception: HIV and recent trends in abortion

Using a difference-in-differences estimation framework and state-level data, we investigate the potential role of HIV/AIDS in contributing to declining abortion utilization in the United States. Our results suggest that the perceived risk of HIV contraction negatively affected unwanted pregnancies. Specifically, a 10% increase in HIV incidence is associated with 0.34–1.1% fewer abortions per live births, an effect that can account for at least one-tenth of the sharp decline in abortions observed from the early 1980s to mid-1990s.     

Locked Up by a Lockup: Valuing Liquidity as a Real Option

Hedge funds often impose lockups and notice periods to limit the ability of investors to withdraw capital. We model the investor's decision to withdraw capital as a real option and treat lockups and notice periods as exercise restrictions. Our methodology incorporates time-varying probabilities of hedge fund failure and optimal early exercise. We estimate a two-year lockup with a three-month notice period costs approximately 1% of the initial investment for an investor with constant relative risk aversion utility and risk aversion of three. The cost of illiquidity can easily exceed 10% if the hedge fund manager can arbitrarily suspend withdrawals.     

Tracking a changing copula

A copula models the relationships between variables independently of their marginal distributions. When the variables are time series, the copula may change over time. Recursive procedures based on indicator variables are proposed for tracking these changes over time. Estimation of the unknown parameters is by maximum likelihood. When the marginal distributions change, pre-filtering is necessary before constructing the indicator variables on which the recursions are based. This entails estimating time-varying quantiles and a simple method based on time-varying histograms is proposed. The techniques are applied to the Hong Kong and Korean stock market indices. Some interesting and unexpected movements are detected, particularly after the attack on the Hong Kong dollar in 1997.