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| Registros recuperados: 53 | |
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| Mullen, John D.; Wohlgenant, Michael K.. |
| A contingent valuation approach has been used to estimate the willingness to pay by consumers for changes in leanness and portion size in lamb loin chops. Over 800 consumers were interviewed at four major shopping centres in Sydney. Consumers were prepared to buy loin chops with more fat cover at a discounted price but were unwilling to offer a premium for chops with a larger area of red meat. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis. |
| Ano: 1991 |
URL: http://purl.umn.edu/22618 |
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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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| Mullen, John D.. |
| Investment in R&D has long been regarded as an important source of productivity growth in Australian agriculture. Perhaps because research lags are long, current investment in R&D is monitored closely. Investment in R&D has been flat while productivity growth has remained strong, relative both to other sectors of the Australian economy and to the agricultural sectors of other countries. Such productivity growth, at a time when the decline in terms of trade facing Australian farmers has slowed, may have enhanced the competitiveness of Australian agriculture. The econometric results presented here suggest no evidence of a decline in the returns from research from the 15- 40 percent per annum range estimated by Mullen and Cox. In fact the marginal... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Productivity; Research and development; Research evaluation; Productivity Analysis. |
| Ano: 2007 |
URL: http://purl.umn.edu/9451 |
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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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| 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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| Zhao, Xueyan; Mullen, John D.; Griffith, Garry R.; Griffiths, William E.; Piggott, Roley R.. |
| Around $100 million has been spent annually on R&D and promotion in the Australian red meat industries in recent years. The R&D investments are made throughout the production, processing and marketing chain in both the grass and grain finished sectors. Promotion investments are made in both export and domestic markets. Despite this large investment of industry and government funds there is great uncertainty about the returns from these investments. Not only is it unclear what the total industry returns are but it is even less clear how producers and the community benefit from the many alternative investment options. Hence, it is unclear how funds should be allocated between these alternatives. Zhao (1999) addressed these issues in research for... |
| Tipo: Report |
Palavras-chave: Industrial Organization; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2000 |
URL: http://purl.umn.edu/28007 |
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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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| Brennan, John P.; Martin, Peter J.; Mullen, John D.. |
| The Wagga wheat breeding program has been operating for over 100 years. In that time, it has released a flow of new wheat varieties for wheat growers in south-eastern Australia. Those varieties have led to increases in both yields and grain quality. The average annual rate of yield improvement in NSW has been 3.2% compared to the average for Australia of 2.4% with a significant proportion of these productivity gains arising from new varieties. In this analysis, the investment in that program from 1980 to 2003 has been evaluated. Given the lags inherent in wheat breeding investments, the benefits from those investments are being measured from 1993 to 2020. The broad structure of the program has remained relatively stable for most of the period since 1980.... |
| Tipo: Report |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2004 |
URL: http://purl.umn.edu/27997 |
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| Singh, Rajinder Pal; Brennan, John P.; Farrell, Tim; Williams, Robert L.; Rienke, Russell; Lewin, Laurie; Mullen, John D.. |
| The occurrence of low night temperatures during reproductive development is one of the factors most limiting rice yields in southern Australia. Yield losses due to cold temperature are the result of incomplete pollen formation and subsequent floret sterility. Researchers have found that in 75% of years, rice farmers suffer losses between 0.5 and 2.5 t/ha. Research is being undertaken to identify overseas rice varieties, that are cold tolerant under the local weather conditions and by using those genotypes as parent material, develop cold tolerance varieties of rice. A yield simulation model was used to measure reduction in losses due to cold at different minimum threshold temperatures, while the SAMBOY Rice model was used to measure the costs and returns... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Rice; Cold; Yield loss; Breeding; Crop Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/57925 |
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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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| Cox, Thomas L.; Mullen, John D.; Hu, Wensheng. |
| Nonparametric methods are used to measure the impacts of public research expenditures on Australian broadacre agriculture over the 1953-94 period. The data and methods used were unable to recover separate impacts due to extension under several alternative specifications. Preliminary results using both unrestricted and 30 year lagged specifications of the research impacts on productivity suggest that while certain aspects of the recovered multi-input/output technologies are quite robust to alternative specifications (in particular, the associated Malmquist total factor productivity indexes), other aspects are less stable (in particular, the indexes on input (and to a lesser extent, output) biased technical change). |
| Tipo: Working or Discussion Paper |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 1996 |
URL: http://purl.umn.edu/12656 |
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| Registros recuperados: 53 | |
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