Agricultural Decision Analysis: The Causal Challenge

The paper sets out the agenda for reviewing models of decision making in the context of farmers’ use of seasonal climate forecasting. Such forecasts have been framed in terms of shifts in cumulative distribution functions of yields or gross margins. Typically they have been applied to choices about crop variety, crop type, time of planting or level of fertiliser application. Fundamental questions are: how do farmers conceptualise and make use of the information contained in seasonal climate forecasts? Do our models of decision making represent well the way in which these decisions are made?decision making, farmers, seasonal climate forecasts, conceptualisation, review,

Can the Australian exchange rate still be considered a commodity based currency?

The Australian dollar is considered a commodity-based currency, with the high level of primary commodity exports in Australia’s trade balance given as an explanation. Key studies have concluded that Australia’s terms of trade are a primary driver of the real exchange rate based on a comparative advantage trade model. These studies have been undertaken at an aggregate level where changes in the terms of trade have been assumed as a given. Since the Australian economy was deregulated in the early 1980s, there have been dramatic changes in the structure of the economy. Australia’s trading activity has grown and now contributes more within the domestic economy. Similarly the structure and contribution of key imports and exports has also evolved. Furthermore the role of the traded goods and services balance and the income balance within the Australian current account balance has also changed, with a significant change occurring in 2003/04. The purpose of this paper is twofold. Firstly it establishes whether the relationship between the Australian exchange rate and terms of trade has changed in response to changes in the role of the traded goods and services sector within the Australian current account balance. Secondly the paper disaggregates the movements in the terms of trade to establish what role its various components have on the wider relationship between the Australian exchange rate and the terms of trade. The paper concludes that despite substantial changes in the structure and nature of the current account balance and the traded goods and services sector, the Australian exchange rate still responds to changes in the terms of trade as if it is still a commodity-based currency and economy.Demand and Price Analysis, International Relations/Trade,

Hemispheric lateralisation and immune function: A systematic review of human research

This is the post-print version of the final paper published in Journal of Neuroimmunology. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. Copyright @ 2011 Elsevier B.V.Past studies examined relationships between hemispheric lateralisation (HL) and immune system functioning. However, there has been no up-dated systematic review of this research area. This article reviews relevant published studies, evaluates study quality and effect sizes. Eleven studies were selected: three revealing a relationship between weaker left hemisphere function and poorer immune function, three describing a relationship between weaker right hemisphere function and stronger immune functioning, and five describing both relationships. Mean effect-size of the studies was r = 0.536 (range 0.280–0.866). Collectively, studies point at left-HL and stronger immunity relationships. Limitations, mechanisms and clinical implications are discussed

Book reviews

Teaching/Communication/Extension/Profession,

The relation between hemispheric lateralisation and measures of immune competence and adherence in Human Immunodeficiency Virus Type 1 (HIV-1)

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited - Copyright © 2012 Sumner et al