Institutional economics approach to irrigation management with special reference to developing countries

Neoclassical economics has failed to address irrigation management issues in developing countries successfully. Institutions are at the heart some of these failures. Many academics in various disciplines in the social sciences now emphasize the need to pay attention to the multitude of informal institutions such as rotational irrigation in developing countries and not to treat them as irrelevant for development. Water user associations have been initiated for irrigation management in many countries. These have shown much promise although many problems still constrain the full adoption of this institutional mode. Water pricing is still at its infancy and significant problems remain in the use of the market system for improved management of irrigation water.

Substitution and complementarity in the creation and communication of Australian university research

The generation of research is one of the major functions of the university sector. In most disciplines, journal articles continue to be the main outlet for the communication of research findings. However, in Australia, government induced distortions have rewarded refereed conference papers an equal status to refereed journal papers. The aim of this paper is to explore the association between research published in journals and research published in conference proceedings. We use a panel dataset of the research output of 36 Australian universities, for the period 1995–2004. Cobb-Douglas research production functions are estimated, as well as a system of research production functions that allows for simultaneity. The results indicate that journals and conferences are contemporaneous substitutes – an expansion in conference publications displaces journal publications. There is also a 'DEST effect'. On average, conference papers are not converted into subsequent journal papers. The DEST effect is found also through analysis of the publication histories of 152 business and law academics. Postgraduate enrolments are shown to contribute only to conferences and have no effect on journal publications. Research income has a positive effect on both conferences and journal publications.

Effects of fish oil substitution with a mix blend vegetable oil on nutrient digestibility in Murray cod, Maccullochella peelii peelii

The replacement of fish oil with vegetable based oils is a strategy which is increasingly being adopted by the aquafeed industry as an essential component to reduce the reliance on a limited supply of a natural resource, which in turn also provides cost benefits. The aim of the present investigation was to evaluate the lipid and fatty acid digestibility of a mix blend vegetable oil in juvenile Murray cod; an emerging species of increasing interest in the Australian aquaculture sector. Five semi purified experimental diets were formulated with 17% lipid originating from fish oil (FO) which was substituted in 25% increments by blended vegetable oil (VO), formulated using olive oil (12%), palm oil (43%) and linseed oil (45%) to match the major fatty acid classes of the FO.

Significant differences between the dietary treatments with regard to the lipid and individual fatty acid digestibility were recorded. This study clearly demonstrated that in Murray cod fatty acid digestibility decreases with chain length, and inversely increases relative to the degree of unsaturation. The combination of chain length, degree of unsaturation and the melting point of individual fatty acids resulted in the digestibility of PUFA > MUFA > SFA and short chain > longer chain fatty acids. Therefore, the inclusion of a mixed blend vegetable oil resulted in significantly reduced lipid digestibility in juvenile Murray cod.

Synthesis of [n]polynorbornanes with differing edge substitution: a new class of regioselectively addressable framework

Polynorbornanes with differing edge functionality have been synthesised from the appropriate cyclobutene epoxides substituted with two, unlike, electron withdrawing groups. These latter compounds were prepared by the monohydrolysis of symmetric cyclobutene diesters and subsequent elaboration of the resulting carboxylic acid.

Insuring cleaner oceans: the economics of oil pollution prevention

The current system of controlling oil spills involves a complex relationship of international, federal and state law, which has not proven to be very effective. The multiple layers of regulation often leave shipowners unsure of the laws facing them. Furthemore, nations have had difficulty enforcing these legal requirements. This thesis deals with the role marine insurance can play within the existing system of legislation to provide a strong preventative influence that is simple and cost-effective to enforce. In principle, insurance has two ways of enforcing higher safety standards and limiting the risk of an accident occurring. The first is through the use of insurance premiums that are based on the level of care taken by the insured. This means that a person engaging in riskier behavior faces a higher insurance premium, because their actions increase the probability of an accident occurring. The second method, available to the insurer, is collectively known as cancellation provisions or underwriting clauses. These are clauses written into an insurance contract that invalidates the agreement when certain conditions are not met by the insured The problem has been that obtaining information about the behavior of an insured party requires monitoring and that incurs a cost to the insurer. The application of these principles proves to be a more complicated matter. The modern marine insurance industry is a complicated system of multiple contracts, through different insurers, that covers the many facets of oil transportation. Their business practices have resulted in policy packages that cross the neat bounds of individual, specific insurance coverage. This paper shows that insurance can improve safety standards in three general areas -crew training, hull and equipment construction and maintenance, and routing schemes and exclusionary zones. With crew, hull and equipment, underwriting clauses can be used to ensure that minimum standards are met by the insured. Premiums can then be structured to reflect the additional care taken by the insured above and beyond these minimum standards. Routing schemes are traffic flow systems applied to congested waterways, such as the entrance to New York harbor. Using natural obstacles or manmade dividers, ships are separated into two lanes of opposing traffic, similar to a road. Exclusionary zones are marine areas designated off limits to tanker traffic either because of a sensitive ecosystem or because local knowledge is required of the region to ensure safe navigation. Underwriting clauses can be used to nullify an insurance contract when a tanker is not in compliance with established exclusionary zones or routing schemes.

The welfare economics of measuring sustainability: a new approach based on social choice theory and systems analysis

This paper presents a new measure of sustainability within a welfare economics framework. Gross domestic product (GDP) can be used as an indicator of sustainability if the GDP estimates are undertaken within a cost-benefit analysis framework based on social choice perspectives. Sustainability is dependent on a healthy and functioning socio-economic and environmental (SEE) system. Economic development can damage the SEE system through resource degradation, over-harvesting and pollution. This paper addresses the tensions between economic development and sustainability by undertaking a number of SEE-based adjustments to GDP based on social choice perspectives in order to measure sustainability. These adjustments include the environmental and social costs caused by economic development such as water pollution, the depletion of non-renewable resources, and deforestation. Thailand is used as a case study for a 25 year period (1975-1999). The results show a divergence in terms of GDP per capita and the SEE-adjusted GDP per capita figure. The paper concludes that, with increasing environmental and social costs of economic development, pursuing such extreme high growth objectives without due environmental and social considerations can threaten present social welfare and future sustainability. Copyright © 2005 John Wiley & Sons, Ltd and ERP Environment.

Outsourcing in the Australian health sector : the interplay of economics and politics

Purpose – The paper discusses the reasons and approaches used at three health organisations in introducing outsourcing. It specifically answers the question: why have managers of health organisations outsourced some functions in preference to others?

Design/methodology/approach – This research employs a case study method making use of qualitative analysis. The health organisations were chosen first as representatives of their type, and secondly due to the nature of the outsourcing decisions made. The first health organisation operates in the rural sector; the second is a metropolitan network; and the third is a large metropolitan hospital, which, in contrast to the other two case study organisations, had made only one decision to outsource, producing the largest outsourcing contract in health in Australia. Furthermore, this situation was distinctive as the contract was terminated and re-issued to another private sector organisation.

Findings – The reasons for outsourcing varied within and between health organisations. Although generally they were made on the bases of the characteristics of the labour market, employee skill levels and the nature of industrial relations, the perception of what was core, the level of internal management skills, the ability of internal teams to implement change and the relationship between management and staff. Even though cost savings and a downsized labour force resulted, generally these occurred even when services were not outsourced, through the use of other change processes, such as introducing new technology, changing structures and promoting workforce flexibility. The interplay of political reasons and economic effects was evident along with the political nature of the decision-making and processes used. The paper concludes that the power of managers was a moderating factor between the desire for outsourcing and whether outsourcing actually occurred.

Research limitations/implications – Although this research was conducted solely within the health sector it has implications for other public sector bodies and the private sector.

Practical implications – Managerial decision making can be enhanced with the exploration of the full complement of reasons for the outsourcing decision.

Originality/value – The paper has value to both academics researching in the public sector and public sector managers.