Attenuating indigenous property rights: land policy after the Wik decision

In December 1996, the High Court of Australia handed down its judgment in the Wik case finding, by a 4:3 majority, that pastoral leases did not necessarily extinguish native title. An intense political campaign by both pastoral and indigenous interests, and their political representatives, was aimed, in the case of the former, at legislative extinguishment of native title on pastoral leases and, in the case of the latter, at defending property rights which the High Court found had never been extinguished. In this article it argued that an efficient re-allocation of property rights is unlikely to result from extinguishment, but requires Coasian-type bargains between pastoral and indigenous interests.Land Economics/Use,

Valuing Ecosystem Services: a critical review

Although there has been much writing about ecosystem services in the last decade, there has been insufficient which clearly elucidates their value. Rather, much of the writing has been classificatory rather than analytical (e.g. the Millennium Ecosystem Assessment, Total Economic Value (TEV), and environmental accounting) and has tended to complicate rather than enlighten. Further, these classification systems are not necessarily internally consistent, nor consistent with each other. There is no systematic analysis of what economic values to report within these frameworks although the SEEA would account in value added terms, consistent with a national accounting framework, and TEV focuses on economic surpluses but is often inter-temporally muddled. This paper explores the necessary modelling that is required to properly identify the value of ecosystem services, and to distinguish them from "supporting" biophysical processes that only have indirect and derivative anthropogenic values. The paper also explores the limitations of environmental accounting - comparable to national accounting - as policy-relevant analysis.Resource /Energy Economics and Policy,

Modelling cost-effective air pollution abatement: a multi-period linear programming approach

Improvements in air quality for some criteria pollutants in Sydney, Wollongong and the Lower Hunter have been achieved, whilst further improvements are required for others.Environmental Economics and Policy,

Book reviews

Teaching/Communication/Extension/Profession,

Book reviews

Teaching/Communication/Extension/Profession,

Effet de la date d'épandage sur l'efficience et le devenir de l'azote du lisier appliqué en prairie permanente en Haute Ardenne

Efficiency and fate of slurry N applied to permanent grass in Ardenne (Belgium) – Effect of the choice of spreading period. In Haute Ardenne and Pays de Herve, areas devoted to grass, slurry represents the main source of nitrogen; slurry is applied on permanent pasture. This paper aims to compare the nitrogen efficiency of cattle slurry with that of mineral fertilizers and to determine the influence of the choice of spreading period on N use by grasses. Results from two long terms trials and from one in micro plots using stable 15N are presented. Results show that the fertilizers applied (organic and mineral) only affected at a mean level of 25% N absorbed by grassland. The efficiency of spring slurry applications carried out in favorable spreading conditions matched those of mineral N. From our results, it can be concluded that N losses in grasslands are very low and are due to volatilization just after the spreading of slurry

Pastoral resources and their management in the Sandstone-Yalgoo-Paynes Find area, Western Australia

This report covers about 94,700 square kilometres of rangelands in the Sandstone-Yalgoo-Paynes Find area of Western Australia. The area lies within 27°S and 30°S latitudes, and 115°30\u27E and 120°E longitudes and includes the towns of Sandstone, Yalgoo and Paynes Find. The northern, southern, and eastern limits of the survey area are largely defined by the boundaries of the 1:250,000 scale series map sheets.The western limit is the boundary between the pastoral and agricultural area

Book reviews

Teaching/Communication/Extension/Profession,

A probabilistic analysis of argument cogency

This paper offers a probabilistic treatment of the conditions for argument cogency as endorsed in informal logic: acceptability, relevance, and sufficiency. Treating a natural language argument as a reason-claim-complex, our analysis identifies content features of defeasible argument on which the RSA conditions depend, namely: change in the commitment to the reason, the reason’s sensitivity and selectivity to the claim, one’s prior commitment to the claim, and the contextually determined thresholds of acceptability for reasons and for claims. Results contrast with, and may indeed serve to correct, the informal understanding and applications of the RSA criteria concerning their conceptual dependence, their function as update-thresholds, and their status as obligatory rather than permissive norms, but also show how these formal and informal normative approachs can in fact align

Fast preparation of single hole spin in InAs/GaAs quantum dot in Voigt geometry magnetic field

The preparation of a coherent heavy-hole spin via ionization of a spin-polarized electron-hole pair in an InAs/GaAs quantum dot in a Voigt geometry magnetic field is investigated. For a dot with a 17 ueV bright-exciton fine-structure splitting, the fidelity of the spin preparation is limited to 0.75, with optimum preparation occurring when the effective fine-structure of the bright-exciton matches the in-plane hole Zeeman energy. In principle, higher fidelities can be achieved by minimizing the bright-exciton fine-structure splitting.Comment: 8 pages, 10 figs, published PRB 85 155310 (2012