Airports in their urban settings: towards a conceptual model of interfaces in the Australian context

In Australia, airports have emerged as important sub-regional activity centres and now pose challenges for both airport operation and planning in the surrounding urban and regional environment. The changing nature of airports in their metropolitan context and the emergence of new pressures and problems require the introduction of a fresh conceptual framework to assist the better understanding of these complex roles and spatial interactions. The approach draws upon the meta-concept of interfaces of an ‘airport metropolis’ as an organising device consisting of four main domains: economic development, land use, infrastructure, and governance. The paper uses the framework to further discuss airport and regional interactions and highlights the use of sustainability criteria to operationalise the model. The approach aims to move research and practice beyond the traditionally compartmentalised analysis of airport issues and policy-making by highlighting interdependencies between airports and regions.     

Why Do Property‐Liability Insurers Destroy Liquidity? Evidence from South Africa

This paper examines liquidity creation behaviour in the property‐liability insurance market in South Africa. Using annual data on 76 insurers from 2007 to 2014, the paper employs the three‐stage approach to estimate liquidity creation. The results suggest that property‐liability insurers are characterised by liquidity destruction by transforming liquid assets in cash and investable securities into illiquid reserves liabilities. The findings also indicate that the R1.32 billion in liquid assets were transformed into illiquid reserves liabilities in 2014, an increase from the R700 million liquidity de‐created in 2007. The increases were mainly driven by large insurers which accounted for about 70% liquidity de‐created. The results of panel regression analysis provide evidence in support of the “risk‐absorption” hypothesis which argues that high levels of capital increases liquidity creation. In addition, size, leverage and reinsurance were also identified as the firm‐level factors that explain liquidity creation. The policy implications of the findings are discussed.     

Work and common health problems

This paper reviews the evidence on the relationship between work and health. It concludes that, overall, the beneficial effects of work outweigh the risks of work, and are greater than the harmful effects of long-term worklessness. That contrasts with increasing trends of sickness absence, long-term incapacity and ill-health retirement attributed to common health problems. It suggests that there needs to be a fundamental shift in how we think about common health problems and work--in health care, the workplace and society.     

Testing for Regime Changes in Greek Sovereign Debt Crisis

This paper examines whether the efficiency market hypothesis for the Greek sovereign debt holds. As in Blanco et al. (2005) we test the theoretical equivalence of credit default swap (CDS) and spreads that dictates a CI relationship between the two. The main innovation of the present analysis is the use of a threshold vector error-correction (TVECM) model, thus allowing thresholds within the sample covering the period 1990 to 2010. Moreover, by employing this methodology we are able to evaluate the degree and dynamics of transaction costs resulting from various events due to external market imperfections but also domestic factors. The main hypothesis we test is to what extent spreads and CDS are indeed integrated that may result in an efficient and integrated segniorage capital market. Our findings support the gradual integration hypothesis. We find that spreads and CDS are cointegrated, though threshold effects are also revealed in terms of events that have impacted on markets.     

On the entrepreneurial genesis of new markets: effectual transformations versus causal search and selection

The generation of new markets is an emerging area of interest among researchers working in the traditions of evolutionary economics. And true to those traditions, the current study incorporates empirical evidence from psychology and cognitive science to develop micro-foundations for evolutionary theories of new market generation. In this paper we present an in-depth analysis of how expert entrepreneurs use effectual logic to conceptualize the creation of new markets. Our results challenge received wisdom based on search and selection processes and move beyond combinatorial ideas to develop instead a “transformational” view of market genesis.     

Does Disclosure Reduce Pollution? Evidence from India’s Green Rating Project

Public disclosure programs that collect and disseminate information about firms’ environmental performance are increasingly popular in both developed and developing countries. Yet little is known about whether they actually improve environmental performance, particularly in the latter setting. We use detailed plant-level survey data to evaluate the impact of India’s Green Rating Project (GRP) on the environmental performance of the country’s largest pulp and paper plants. We find that the GRP drove significant reductions in pollution loadings among dirty plants but not among cleaner ones. This result comports with statistical and anecdotal evaluations of similar disclosure programs. We also find that plants located in wealthier communities were more responsive to GRP ratings, as were single-plant firms.     

Impact of copula choice on the modeling of crop yield basis risk

A number of problems in agricultural economics involve modeling joint distributions for which the assumption of multivariate normality may not be warranted. Yet, very little work has been conducted evaluating competing methods for modeling joint dependence. We develop a simulation framework to evaluate the bias and efficiency impacts of copula choice in the context of evaluating county‐to‐farm basis risk. The results suggest significant differences in performance across various copulas and approaches. The findings have important implications for risk analysis, insurance, and policy modeling problems in agriculture regarding the selection of method to model dependence among random variables.     

Spatiotemporal Modeling of Asian Citrus Canker Risks: Implications for Insurance and Indemnification Fund Models

Asiatic citrus canker is a disease that poses a significant hazard to commercial citrus production. This article examines spatiotemporal models of the risks of citrus canker transmission. Models evaluate risks and are used to price annual contracts, which would pay producers a prespecified indemnity in the event that their grove is found to be infected with canker. Implications for risk management policy are discussed.