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PHASING IN AND PHASING OUT PROTECTIONISM WITH COSTLY ADJUSTMENTS OF LABOUR AgEcon
Karp, Larry S.; Paul, Thierry.
We study the dynamics of optimal trade policy in a model with costly inter-sectoral adjustment of labour, where migrants pay less than the marginal social cost of migration. If workers have rational expectations, a future tariff has an announcement effect on the current migration decision. If the government is able to commit itself to future policy, the optimal trajectory involves phasing in and then phasing out protection of the dying sector. This contrasts with recommendations of gradual liberalization. Without the ability to make commitments, the equilibrium policy begins with and maintains free trade.
Tipo: Working or Discussion Paper Palavras-chave: Adjustment costs; Dynamic tariffs; Time inconsistency; Markov perfection; International Relations/Trade.
Ano: 1993 URL: http://purl.umn.edu/51112
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LABOR ADJUSTMENT AND GRADUAL REFORM: IS COMMITMENT IMPORTANT? AgEcon
Karp, Larry S.; Paul, Thierry.
We analyze a model in which a government uses a second best policy to affect the reallocation of labor, following a change in relative prices. We consider two extreme cases, in which the government has either unlimited or negligible ability to commit to future actions. We explain why the ability to make commitments may be unimportant, and we illustrate this conjecture with numerical examples. For either assumption about commitment ability, the equilibrium policy involves gradual liberalization. The dying sector is protected during the transition to a free market, in order to decrease the amount of unemployment Our results are sensitive to the assumptions about migration.
Tipo: Working or Discussion Paper Palavras-chave: Adjustment costs; Dynamic tariffs; Time inconsistency; Markov perfection; Labor and Human Capital.
Ano: 1994 URL: http://purl.umn.edu/51222
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Time-Consistent Policies AgEcon
Karp, Larry S.; Lee, In Ho.
In many cases the optimal open-loop policy to influence agents who solve dynamic problems is time-inconsistent. We show how to construct a time-consistent open-loop policy rule. We also consider an additional restriction under which the time-consistent open-loop policy is stationary. We use examples to illustrate the properties of these tax rules.
Tipo: Working or Discussion Paper Palavras-chave: Time inconsistency; Open-loop policies; Stationarity; Public Economics; C72; D83.
Ano: 2000 URL: http://purl.umn.edu/6275
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Equilibrium management of fisheries with altruistic overlapping generations AgEcon
Ekeland, Ivar; Karp, Larry S.; Sumaila, Ussif Rashid.
We imbed a classic fishery model, where the optimal policy follows a Most Rapid Approach Path to a steady state, into an overlapping generations setting. The current generation discounts future generations’ utility flows at a rate possibly different from the pure rate of time preference used to discount their own utility flows. The resulting model has non-constant discount rates, leading to time inconsistency. The unique Markov Perfect equilibrium to this model has a striking feature: provided that the current generation has some concern for the not-yet born, the equilibrium policy does not depend on the degree of that concern.
Tipo: Working Paper Palavras-chave: Fisheries management; Sustainable development; Renewable resources; Time inconsistency; Hyperbolic discounting; Production Economics; Q01; Q22; C 61.
Ano: 2011 URL: http://purl.umn.edu/123635
Registros recuperados: 4
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