Economics - Research Publications

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    Opportunities and Challenges for CGE Models in Analysing Taxation
    Freebairn, J (WILEY, 2018-03)
    Taxation analysis seeks to describe the effects of current taxes, make forecasts and assess proposed reform options. In each case, the effects on market outcomes, distribution of the tax burden and distortions to decisions and economic efficiency are estimated. When second‐round effects are important, including for most taxes on business and where exemptions from comprehensive tax bases are significant, general equilibrium models are required. A computer general equilibrium model (CGE) with detailed and disaggregated industry, product and factor markets has great potential to quantify the general equilibrium effects of taxation. Challenges and areas for development of available CGE models for taxation analysis include the following: disaggregation of households to assess distribution effects and allow for different elasticities; modelling the effects of the hybrid tax treatment of different household saving and investment options; disaggregation of some business decisions to capture the effects of departures from comprehensive tax bases and of decision‐makers facing different tax systems; and modelling and conveying the implications of imperfect knowledge of key assumptions and parameters.
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    Environmental Water Efficiency: Maximizing Benefits and Minimizing Costs of Environmental Water Use and Management
    Horne, AC ; O'Donnell, EL ; Loch, AJ ; Adamson, DC ; Hart, B ; Freebairn, J (WILEY, 2018)
    Environmental water management is a relatively new discipline, with concepts, management practice and institutional mechanisms that are still emerging. The efficient and effective use of environmental water to maximize environmental benefits, or environmental water use efficiency, is one such emerging concept. Currently, much of the focus is on allocative efficiency, where the objective is to achieve a better balance between consumptive and environmental water uses in a cost‐effective way. However, this may not provide the most efficient and effective way to manage environmental water in the long term, where managers are seeking productive (or operational) efficiency. Here, the objective is to maximize environmental outcomes relative to the cost of managing the available resource. This paper explores the concept of water use efficiency in the context of environmental water.
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    Effects of supermarket monopsony pricing on agriculture
    Freebairn, J (WILEY, 2018-10)
    Potential effects of alleged monopsony pricing of farm food products by supermarkets on farm product prices, quantities, incomes and land values are assessed relative to competitive behaviour. A long‐run comparative static equilibrium model is used. For export‐competing and import‐competing products, the farm food input supply curve facing the supermarkets is close to perfectly elastic and this limits monopsony behaviour. At the margin, the opportunity to reallocate agricultural land between traded and nontraded farm products means a highly elastic supply function for nontraded food inputs facing supermarkets and very limited monopsony effects.
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    Policy Options to Reduce Electricity Greenhouse Gas Emissions
    Freebairn, J (WILEY, 2018-12)
    Abstract The design and effects of different schemes to reduce greenhouse gas emissions associated with the production and consumption of electricity are modelled. The tax scheme achieves the lowest cost per unit emission reduction because it encourages both businesses and consumers to reduce emissions, and the recycled windfall revenue can meet equity objectives. Comparing the Emissions Intensity Scheme (EIS), Clean Energy Target (CET) and Renewable Energy Target (RET) schemes with common government revenue neutral and emissions reduction design outcomes, the EIS provides better incentives to generators to find the lower cost per unit emissions reduction.
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    Federalism and Tax Reform
    Freebairn, J (WILEY, 2018-06)
    Abstract The form and potential contributions of cooperative federalism and the additional skills and tasks required of the public service to turn well‐known and developed tax reforms into actual reforms are evaluated. Cooperative federalism seems necessary for reforms involving state taxes and changes in the mix of taxes. Additional public sector skills and involvement in developing details of tax reform packages and their implementation, and then monitoring the outcomes, are important to raise community understanding of, and confidence in, taxation reform.