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| Dhungana, Basanta R.; Nuthall, Peter L.; Nartea, Gilbert V.. |
| Efficiency has been proven to be an important managerial tool in improving total factor productivity in agriculture. The four sources of economic inefficiency: allocative, technical, pure technical and scale inefficiency of a sample of seventy-six Nepalese rice farmers were examined using the data envelopment analysis (DEA) decomposition method. The inefficiency indices computed by the DEA were then used as the dependent variable in a Tobit (censored) regression model using decision- makers’ attributes as the explanatory variables. The results revealed relatively large inefficiencies among the farms sampled. The average economic, allocative, technical, pure technical and scale inefficiencies were 34%, 13%, 24%, 18%, and 7% respectively. There is also a... |
| Tipo: Presentation |
Palavras-chave: Efficiency; Frontier; DEA; Rice farming; Tobit regression; Socioeconomic attributes; Risk attitude; Crop Production/Industries. |
| Ano: 2000 |
URL: http://purl.umn.edu/123630 |
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| Dhungana, Basanta R.; Nuthall, Peter L.; Nartea, Gilbert V.. |
| A data envelopment analysis of a sample of 76 Nepalese rice farmers reveals average relative economic, allocative, technical, pure technical and scale inefficiencies as 34, 13, 24, 18 and 7 per cent, respectively. The significant variations in the level of inefficiency across sample farms are attributed to the variations in the ‘use intensities’ of resources such as seed, labour, fertilisers and mechanical power. In addition, a second stage Tobit regression shows the variation is also related to farm‐specific attributes such as the farmers’ level of risk attitude, the farm manager's gender, age, education and family labour endowment. Based on the empirical findings, policy implications and development strategies for improving efficiency of Nepalese rice... |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 2004 |
URL: http://purl.umn.edu/117966 |
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| Nartea, Gilbert V.; Pellegrino, Juan M.; Webster, Paul. |
| Off-farm investment as a risk management strategy is not widespread among New Zealand sheep and beef farmers. This study explores the potential for risk reduction by the diversification of farm asset portfolios to include financial investments such as industrial equities and government bonds of various types. Results show that the negative correlations between long-run rates of return on farm assets and financial investments could result in a significant reduction of risk if equities and bonds were included in farm investment portfolios. However, when combined with information about attitudes to risks, it does not seem likely that farmers would adopt such strategies purely in order to stabilise incomes. Deregulation of the New Zealand economy in the mid... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agricultural Finance; Risk and Uncertainty. |
| Ano: 2003 |
URL: http://purl.umn.edu/24376 |
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| Nartea, Gilbert V.; Webster, Paul. |
| This study explores the potential for risk reduction by New Zealand farmers through the diversification of their farm asset portfolios to include financial investments such as ordinary industrial shares, government bonds and bank bills. Low correlations between rates of return on farm and these financial assets suggest that significant reduction of income variability might follow their inclusion in farmers’ portfolios. Stochastic efficiency analysis is used to analyse alternative portfolios of ordinary shares, government bonds and bank bills and New Zealand farmland, using coefficients of absolute risk aversion derived from a negative exponential utility function. The results suggest that those farmers showing high degrees of risk aversion would gain... |
| Tipo: Article |
Palavras-chave: Financial assets; NZ farmland; Risk management; Stochastic efficiency analysis; Agricultural and Food Policy; Risk and Uncertainty. |
| Ano: 2008 |
URL: http://purl.umn.edu/118538 |
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| Xu, Hai Yan; Ward, Bert D.; Nartea, Gilbert V.. |
| This paper uses the one-factor models proposed by Chan, Karolyi, Longstaff and Sanders (CKLS, 1992) to study the short-term interest rate in China. Nine stochastic models of the short-term interest rate were estimated with GMM. For the Chinese one-month inter bank loan rate, the research finds strong evidence for a mean-reverting feature in the short-term interest yield curve, but no evidence was found to indicate that the volatility is highly positively correlated with the level of interest rates. What is more, evidence was found that the CKLS model, the CIR SR model, and the Brennan-Schwartz model are correctly specified to model the Chinese short-term interest rate, so that these three models are able to adequately capture the dynamics of this interest... |
| Tipo: Journal Article |
Palavras-chave: Single-factor models; Mean reversion; GMM estimation; Prediction tests; Financial Economics; C52; E43. |
| Ano: 2007 |
URL: http://purl.umn.edu/50157 |
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