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51.
Lars Gårn Hansen Frank Jensen Urs Steiner Brandt Niels Vestergaard 《American journal of agricultural economics》2006,88(4):974-985
To solve the problem of illegal landings this article proposes a new tax mechanism based on the regulator's own aggregate catch estimates and ex ante self-reports of planned catch by fishermen. We show that the mechanism avoids illegal landings while ensuring (nearly) optimal exploitation and generating (nearly) correct entry and exit incentives. Finally we simulate the mechanism for the Danish cod fishery in Kattegat to obtain a rough indicator of the size of the tax. It turns out that the average tax payment as a percentage of profit is surprisingly low. 相似文献
52.
The article investigates how sensitive different dynamic and static hedge strategies for barrier options are to model risk. It is found that using plain‐vanilla options to hedge offers considerable improvements over usual Δ hedges. Further, it is shown that the hedge portfolios involving options are relatively more sensitive to model risk, but that the degree of misspecification sensitivity is robust across commonly used models. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:449–463, 2006 相似文献
53.
Ron Hansen 《International Journal of Technology and Design Education》1997,7(1-2):111-119
The position taken in this paper is that narrow conceptions of human development and the purposes of schooling have tended to displace rather than situate subjects like technology in the curriculum. Arguments which support this position, however, are only possible when the paradigm through which schooling is operationalized, is inverted. Viewing classic school subjects as abstractions which perpetuate narrow conceptions of pedagogy is a contentious position to take. But taking it and understanding how a utilitarian curriculum spawns real human development and learning gives a whole new perspective to curriculum theory and practice. 相似文献
54.
Bent Hansen 《Review of Income and Wealth》1977,23(4):397-404
Starting out from the observation that both imports and exports may be viewed as the difference between domestic consumption (use) and production, static standard theory of biases in consumption and production indices is brought to bear upon trade indices: Laspeyres tends to overrate when applied to imports and to underrate when applied to exports; for Paasche, the opposite holds true. Hence, terms of trade tend to be underrated (exaggerated) when based upon Laspeyres (Paasche) price indices. The problem of extending these conclusions to the case of changes in production frontiers and preference maps is discussed. When homotheticity is absent, correlation between price and quantity relatives may upset the simple conclusions. This is of special importance in the large-country situation. Dynamics further complicate the situation. A cobweb mechanism in exports may thus reverse the static results. 相似文献
55.
John A. Hansen 《Small Business Economics》1992,4(1):37-44
This paper uses a new data set on innovation output to assess the degree to which the level of innovation in manufacturing firms is influenced by firm size and firm age. Indicators of innovation output used are the number of new products introduced as a function of firm sales and the proportion of firm sales obtained from products first introduced in the previous five years. While the evidence is mixed, the results tend to indicate that it is possible to separate the effects of age and size in assessing the level of innovation. Both firm size and firm age tend to be inversely related to innovative output. 相似文献
56.
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58.
The paper is concerned with the comparison of the locations of a facility resulting from voting and planning procedures. It is shown that a voting location exists and coincides with that minimizing the total distance covered by the users to go to the facility when the transportation network contains no cycles. For a general network, least upper bounds on the ratio of the social values of the voting and planning locations are given in the cases where the total or the maximal travelled distance is minimized. 相似文献
59.
This paper analyses the relation between money and inflation in Germany in a cost-push/demand-pull model of an open small economy by means of cointegration methods. The full-information-maximum-likelihood method of Johansen as well as structural methods are applied to datasubsets and the full data set. The focus of the paper is on tests for overidentifying restrictions and for weak and strong exogeneity within these data sets. The result of the paper is that the money stock, the price level and gross national product are endogenous whereas the interest rate and the real import price are both weakly and strongly exogenous. By means of the price cointegration relation we illustrate how monetary targeting should react to imported inflation. 相似文献
60.
Stein Hansen 《Revue africaine de developpement》1992,4(1):118-164