Manpower planning models and techniques: A descriptive survey

The authors review the reasons for the increasing need for manpower planning. The chief characteristics of the four main types of manpower planning are described. First is the technique of using opinion or informed judgment, including the somewhat unique Delphi technique. The use of matrix models is described for both executive and management manpower planning. Third, the authors identify the characteristics of quantitative techniques, dividing them into three categories: statistical methods, operations research methods, and network techniques. Finally, three computer simulation models are described, including the Weber model. Ten subjective criteria for evaluating the selected techniques are proposed, and an evaluation of the selected techniques is presented in a matrix form.     

Counting the cost of vulture decline—An appraisal of the human health and other benefits of vultures in India

Widespread use of the non-steroidal anti-inflammatory drug (NSAID) diclofenac to treat livestock has resulted in dramatic declines in the populations of vultures across India. This has become an issue of considerable concern as vultures are a keystone species and their decline has a range of socio-economic, as well as cultural and biodiversity impacts. In this paper, we review these impacts and estimate in detail the economic cost of one of them: the human health impacts of the vulture decline. Livestock carcasses provide the main food supply for vultures, and are also eaten by dogs. Dogs are the main source of rabies in humans in India, and their populations have increased substantially in parallel with the vulture decline. The potential human health impact of rabies associated with the vulture decline is found to be significant. This, and a wide range of other impacts suggest that significant resources should be put into (1) testing of pharmaceutical products to ensure that similar situations are not repeated, (2) helping vulture populations to recover through the use of alternative drugs to diclofenac that are of low toxicity to vultures, and (3) through conservation breeding programmes.     

Purchasing Power Parity

The paper provides a selective and critical review of the literature on purchasing power parity and real exchange rates, with special reference to the literature of the last two decades.     

The trade-induced degradation hypothesis

This paper develops a simple two-sector dynamic model to examine the effects of international trade when government policy regarding the environment is short sighted, but still responsive to changes in income levels and in the quality of the environment. We show that free trade can usher in a negatively reinforcing cycle of increased pollution, lower environmental quality, and lower real incomes. Such cycles are not possible in autarky. We link the potential for trade to cause ‘large’ environmental consequences to the structure of tastes and technologies and the attributes of industrial pollution.     

Disability,social inclusion and the marketing of tourist attractions

The participation of persons with a disability (PWDs) in tourism has received growing academic interest in recent years. This paper contributes to a reflection on how accessible tourism relates to the sustainable development paradigm. To investigate this relationship, it goes beyond the question of PWDs’ access to tourism services, and adopts an inclusiveness perspective. Inclusion is examined in terms of legislation, marketing and imagery, and representations of PWDs as consumers embedded within social units – and families in particular. These dimensions are explored empirically in a study of visitor attractions in Cornwall (England) based on a quantitative and qualitative content analysis of brochures and websites. The study shows that the marketing materials of Cornish visitor attractions mainly focus on access, and the imagery used largely projects quasi invisibility or provides ambiguous messages. Communication with PWDs rarely addresses the family unit, making the family tourism experience intangible in the pre-trip phase. These results point at weaker implementation of inclusiveness, which corroborates previous findings of watered down definitions of rights to tourism under neo-liberal ideologies and economic crises. The paper discusses implications for social inclusion and highlights avenues for future research.     

Validating a DEA-based menu analysis model using structural equation modeling

While a restaurant's menu is known as the cornerstone of the operation, research aimed at optimizing it has not radically evolved. This is problematic in that traditional menu management and analysis models share the common and irremediable shortcoming of variable interdependency, in which the central intersection between vectors in a matrix is dictated by the means for the associated variables. In other words, changes to a single menu item alter the means of the related variables and artificially alter the position of other menu items. Moreover, the limited number of inputs, which typically ignore labor and labor costs, casts suspicion on any conclusions that are drawn. More recent models, such as those that integrate non-parametric statistics including data envelopment analysis (DEA), promise greater utility but have gone largely untested. This paper extends the more holistic model made possible by applying DEA and then tests the resulting archetype using structural equation modeling (SEM). The results suggest that DEA models are valid and that even more complex models are possible. For managers, the findings illustrate the inadequacy of earlier, simplistic models and call for a broader understanding of menu optimization approaches.     

The Corn Price Surge: Impacts on Rural Mexico

We use an agent-based, general-equilibrium model to explore the impacts of world corn-price increases on land use and income in rural Mexico. In the model, interactions among heterogeneous agents within a local context shape both macro and microeconomic outcomes. Results suggest that subsistence activities allowed agriculture to absorb the shock, limiting the benefits of higher prices for the population while keeping deforestation pressures in check. An estimated 5.7% corn-area expansion by 2008 and wide variation across regions corresponds well with ex-post reports. Agricultural growth led to 0.02% and 3.9% increases in real income for rural households and absentee landholders, respectively.     

International Corporate Tax Avoidance Practices: Evidence from Australian Firms

This paper examines the international corporate tax avoidance practices of publicly listed Australian firms. Based on a hand-collected sample of 203 publicly listed Australian firms over the 2006–2009 period (812 firm-years), our regression results indicate that there are several practices Australian firms use to aggressively reduce their tax liabilities. Specifically, we find that thin capitalization, transfer pricing, income shifting, multinationality, and tax haven utilization are significantly associated with tax avoidance. In fact, based on the magnitude and significance levels of the regression coefficients in our study, thin capitalization and transfer pricing represent the primary drivers of tax avoidance, whereas income shifting and tax haven utilization are less important. Finally, our additional regression results show that tax havens are likely to be used together with thin capitalization and transfer pricing to maximize international tax avoidance opportunities via the increased complexity of transactions carried out through tax havens.     

Fluctuation Tests for a Change in Persistence*

In this paper, we develop a set of new persistence change tests which are similar in spirit to those of Kim [Journal of Econometrics (2000) Vol. 95, pp. 97–116], Kim et al. [Journal of Econometrics (2002) Vol. 109, pp. 389–392] and Busetti and Taylor [Journal of Econometrics (2004) Vol. 123, pp. 33–66]. While the exisiting tests are based on ratios of sub‐sample Kwiatkowski et al. [Journal of Econometrics (1992) Vol. 54, pp. 158–179]‐type statistics, our proposed tests are based on the corresponding functions of sub‐sample implementations of the well‐known maximal recursive‐estimates and re‐scaled range fluctuation statistics. Our statistics are used to test the null hypothesis that a time series displays constant trend stationarity [I(0)] behaviour against the alternative of a change in persistence either from trend stationarity to difference stationarity [I(1)], or vice versa. Representations for the limiting null distributions of the new statistics are derived and both finite‐sample and asymptotic critical values are provided. The consistency of the tests against persistence change processes is also demonstrated. Numerical evidence suggests that our proposed tests provide a useful complement to the extant persistence change tests. An application of the tests to US inflation rate data is provided.