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| Registros recuperados: 14 | |
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| Mandal, Maitreyi; Lagerkvist, Carl Johan. |
| Mean-Variance theory of portfolio construction is still regarded as the main building block of modern portfolio theory. However, many authors have suggested that the mean-variance criterion, conceived by Markowitz (1952), is not optimal for asset allocation, because the investor expected utility function is better proxied by a function that uses higher moments and because returns are distributed in a non-Normal way, being asymmetric and/or leptokurtic, so the mean-variance criterion cannot correctly proxy the expected utility with non-Normal returns. Copulas are a very useful tool to deal with non standard multivariate distribution. Value at Risk (VaR) and Conditional Value at Risk (CVaR) have emerged as a golden measure of risk in recent times. Though... |
| Tipo: Presentation |
Palavras-chave: Portfolio Choice; Downside Risk Protection; Value at risk; Copula; Agricultural Finance; Risk and Uncertainty; C52; G11; Q14. |
| Ano: 2012 |
URL: http://purl.umn.edu/124387 |
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| Lagerkvist, Carl Johan; Johansson, Helena; Birol, Ekin; Roy, Devesh; Narrod, Clare A.. |
| Irrigation with raw or diluted wastewater is a widespread phenomenon, occurring on 20 million hectares across the developing world, especially in Asian countries, but also in peri-urban areas around almost every city of sub-Saharan Africa and in many Latin American cities. Growing urban populations and consequent increases in demand for food and water has spurred the use of sewage to water crops as this is, in many cases, the only form of irrigation for farmers who either lack clean water or for whom clean water is too expensive. Wastewater has high nutrient value and constitutes a reliable source (Scott et al., 2004). It is mostly used to produce cash crops (e.g. vegetables and cereals). For example, it has been estimated that in most parts of Sub-... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies; Risk and Uncertainty. |
| Ano: 2009 |
URL: http://purl.umn.edu/59115 |
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| Lagerkvist, Carl Johan. |
| This paper examines farmers' risk attitudes, obtained by responses to sources of risk, using an attitudinal scale approach. Economic, social, personal, and environmental sources of risk are considered in the measurement of risk attitudes. In addition, use of various types of expertise and information sources are included as risk management tools. Inferences are drawn from results of a survey mailed to a representative random sample of 500 farmers drawn from the population of medium to large farms (by acreage) in southern Sweden. Regarding the adequacy of the results it was found that a mail survey produces results similar to earlier results obtained by personal interview. Farmers' responses to the attitudinal scales showed levels of communal variation... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2005 |
URL: http://purl.umn.edu/19361 |
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| Carlsson, Fredrik; Frykblom, Peter; Lagerkvist, Carl Johan. |
| Applying an experiment on the choice of consumer goods, we show that Swedish consumers do not regard genetically modified (GM) food as being equivalent to conventional food. A central argument by proponents of GM is that the end products are identical to those where GM has not been used. That respondents in our survey disagree with this argument is supported by two observations. First, a positive significant WTP is found for a mandatory labeling policy. This result confirms previous observations that GM food can be a credence good causing a market failure. Second, consumers are also willing to pay a significantly higher product price to ensure a total ban on the use of GM in animal fodder. Even if scientists and politicians argue that most of today's GM... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Institutional and Behavioral Economics. |
| Ano: 2004 |
URL: http://purl.umn.edu/20370 |
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| Lagerkvist, Carl Johan; Olson, Kent D.. |
| This paper investigates the extent to which an active agricultural policy directed to the return and/or the variability of return in farming that is understood and anticipated, where the political process creates parameter uncertainty and noise about the precise timing of reform, influences the capital structure at the farm level. Closed for solutions for the implied restructuring prior to the reform is derived. The empirical analyses the policy induced incentives for debt levels adjustment that may have prevailed prior to and after the 1996 Farm Bill. The empirical analysis strongly supports the theoretical analysis. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Financial Economics. |
| Ano: 2002 |
URL: http://purl.umn.edu/19694 |
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| Registros recuperados: 14 | |
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