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| Registros recuperados: 53 | |
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| Islam, Q.; Mullen, John D.; Brennan, John P.; Li, G.D.; Helyar, K.R.; Jones, Randall E.. |
| Acid and acidifying soils occur extensively in Australia. Currently, some 90 million hectares of agricultural land in Australia is considered to be acidic and around 35 million hectares are considered to be highly acidic which is both a serious agricultural and environmental problem. The nature, impact, and causes of soil acidification vary across Australia, as do farming systems and the institutional and socioeconomic issues relating to land management. In high-rainfall areas of south-eastern Australia, managing acid soils is particularly difficult in permanent pasture systems. In this paper, an economic analysis is made of the results of a long-term trial (MASTER – Managing Acid Soils Through Efficient Rotations) aimed at developing a sustainable... |
| Tipo: Presentation |
Palavras-chave: Soil acidity/pH/amelioration/farming/rotations/gross margin/stocking rates; Crop Production/Industries; Farm Management. |
| Ano: 1999 |
URL: http://purl.umn.edu/123818 |
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| Sheng, Yu; Mullen, John D.; Zhao, Shiji. |
| Agricultural productivity growth has been strong relative to other sectors in the Australian economy, and relative to the agricultural sectors of other developed countries. However, as commonly observed among other developed economies, growth in productivity in the broadacre sector of Australian agriculture seems to have slowed in the past decade. This paper uses the adjusted cumulative sum square (CUSQ) index to examine the trend stability of total factor productivity in Australian broadacre agriculture over the period 1952-53 to 2006-07. The results show that a significant slowdown occurred around the mid-1990s. Further analysis shows that the slowdown in productivity growth is driven by a longterm decline in public R&D investment in addition to poor... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Total factor productivity; Structural change analysis; CUSUM index; Crop Production/Industries; Farm Management. |
| Ano: 2010 |
URL: http://purl.umn.edu/59266 |
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| Mullen, John D.. |
| There is evidence that productivity in Australia’s broadacre agriculture (extensive cropping and livestock industries) has been slowing in the past decade. A series of poor seasons has been partly responsible, but an econometric analysis of structural changes in the trend of total factor productivity (TFP) indicates that stagnant public investment in agricultural R&D has also made a significant contribution to this slowdown in TFP. Related econometric analysis of the returns to public investment in agricultural R&D in the broadacre sector confirms that the rate of return to investment remains high. Despite these findings, a recent enquiry by Australia’s Productivity Commission into the financing of rural research suggests that the public sector may... |
| Tipo: Article |
Palavras-chave: Total factor productivity; Returns to research; Crowding out; Farm Management. |
| Ano: 2012 |
URL: http://purl.umn.edu/122896 |
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| Mullen, John D.. |
| Samples of pig producers and buyers operating at Blayney Abattoir were surveyed for their willingness to pay for the pig carcase classification service which has been in operation there since 1974. The survey of producers encountered few problems. The service was valued at more then twice its cost by seventy-one respondents representing about one third of producers normally supplying Blayney. The survey of buyers was less successful and little reliance was placed on its results. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1982 |
URL: http://purl.umn.edu/12239 |
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| Mullen, John D.; Cox, Thomas L.. |
| Many people share the view that too little is invested in R & D in agriculture. The relationship between several measures of productivity and research expenditure was estimated using data from ABARE's surveys of broadacre industries and a new data series on R & D expenditure for the period 1953 to 1988. The internal rate of return to research was estimated to be in the range of 15 to 40 percent which does not provide strong evidence that Australia is either under- or over-investing in public research. |
| Tipo: Journal Article |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 1995 |
URL: http://purl.umn.edu/22399 |
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| Davis, D.C.; Mullen, John D.; Bryant, M.J.. |
| Information on farm incomes and expenditure patterns for the eight year period 1968-69 to 1975-76 was collected in a survey of 102 farm businesses. Average gross farm earnings varied by up to $20,000 over the period, with marked variations in individual enterprise earnings also being observed. Spending on farm current costs, investment and livestock and consumption closely followed the trends in incomes. A summary of the data collected for 90 of the 102 farm businesses is presented. |
| Tipo: Journal Article |
Palavras-chave: Farm Management. |
| Ano: 1979 |
URL: http://purl.umn.edu/12546 |
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| Mullen, John D.; Vernon, Don; Fishpool, Ken I.. |
| Trends in public expenditure on agricultural extension are examined for Agriculture Departments in four States. There is little evidence that the share of public resources going to extension has declined. However, new demands have meant that the nature of extension has changed. A strategic approach to examining issues, such as land degradation, for the source of market failure may better guide the use of scarce public resources than the traditional focus on the public goods characteristics of research and extension. The case for evaluating broad functions such as research and extension is becoming more questionable as these functions become more diverse. |
| Tipo: Journal Article |
Palavras-chave: Teaching/Communication/Extension/Profession. |
| Ano: 2000 |
URL: http://purl.umn.edu/117855 |
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| Mullen, John D.; Cox, Thomas L.. |
| An important source of growth for Australian broadacre agriculture has been technical progress. We compare alternative measures of productivity growth including the traditional Tornqvist-Thiel total factor productivity index; variants of this approach that allow decreasing returns to scale; the Fisher ideal index; other nonparametric measures that do not impose particular functional forms and an econometric estimate from a translog industry cost function. The annual growth in productivity in broadacre agriculture over the period from 1953 to 1994 was in the range of 2.4 to 2.6 per cent and hence was quite robust to measurement technique. |
| Tipo: Journal Article |
Palavras-chave: Productivity Analysis. |
| Ano: 1996 |
URL: http://purl.umn.edu/22365 |
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| Webster, Stewart; Mullen, John D.. |
| Increased surveillance over the last three years has found that the prevalence of ovine Johne’s disease (OJD) in Australia is greater than previously believed. Trading restrictions and recent stock movement controls have added to the productivity losses of OJD affected producers in an attempt to minimise further spread of the disease while scientific data to support long term policy decisions is obtained through the National OJD Control and Evaluation Program. The literature on the economics of OJD in Australia is reviewed and a framework for further work in this area developed. Directions for economic research within the National Program are then presented. |
| Tipo: Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2000 |
URL: http://purl.umn.edu/123737 |
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| Hean, Robyn L.; Cacho, Oscar J.; Signor, Anthony; Mullen, John D.. |
| The focus of this paper is the role of farm forestry in farming systems in the NSW wheatsheep zone. The wheat-sheep zone suffers from significant land degradation problems, and the environmental and economical sustainability of many farming systems is in question. Farm forestry provides the opportunity to diversify farmer incomes, increase agricultural productivity and provide environmental solutions. It is therefore proposed that the potential role of farm forestry in the wheat-sheep zone is to provide an environmentally and economically sustainable future for farming systems, through tree planting for multiple benefits. A general model is developed for the purpose of economic analysis of agroforestry systems in the wheat-sheep zone using a bioeconomic... |
| Tipo: Presentation |
Palavras-chave: Farm forestry; Farming systems; Bioeconomics; Resource /Energy Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/123659 |
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| Mullen, John D.; Alston, Julian M.. |
| An equilibrium displacement model of the Australian lamb industry was used to estimate the changes in economic surplus to the producers, processors and consumers of lamb from an increase in the proportion of total production meeting the criteria for Elite lamb. This change in the nature of the product has implications for consumer demand and for processing and production costs. Estimates of the expected changes in these demand and supply parameters are presented in the paper. The potential demand shift was estimated to be much larger than the changes in production and processing costs and consequently was most influential in determining the extent of the benefits from the change in technology. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1995 |
URL: http://purl.umn.edu/12399 |
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| O'Mara, L. Paul; Mullen, John D.; Powell, Roy A.; Reece, B.F.. |
| Over recent years there has been marked instability in incomes earned from farming. The instability, which affects the economy generally, is transmitted partly through the consumption spending of farmers. A conventional view of the short-run marginal propensity to consume of farmers, supported by some analyses of aggregate data, is that it is zero. It is argued that this view is implausible on theoretical grounds, that the analysis giving rise to this view used aggregate data which contained serious flaws, and that evidence from micro-studies and other macro level analyses present a more realistic assessment that the short-run mpc of farmers is not zero but likely to be lower than that of non-farmers. A non-zero mpc has implications for how the farm sector... |
| Tipo: Journal Article |
Palavras-chave: Consumer/Household Economics. |
| Ano: 1988 |
URL: http://purl.umn.edu/12552 |
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| Registros recuperados: 53 | |
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