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161.
Summary Some people have serious worries about the effects of an aging population in The Netherlands. In this article, attention is directed towards a number of positive effects, like their rather high purchasing power, their low criminality rate, low rate of traffic accidents,etc. If one takes account of the expected rise in incomes of the elderly, the influence of aging on a country's economy will generally be positive. Income expenditure will be focussed on travel and housing. Promoting the immigration of elderly people may bring about a reinforcement of a regional economy. 相似文献
162.
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164.
The recreational value of coral reefs: A meta-analysis 总被引:3,自引:0,他引:3
Coral reefs are highly productive ecosystems that provide a variety of valuable goods and services, including recreational opportunities. The open-access nature and public good characteristics of coral reefs often result in them being undervalued in decision making related to their use and conservation. In response to this, there now exists a substantial economic valuation literature on coral reefs. For the purposes of conducting a meta-analysis of this literature, we collected 166 coral reef valuation studies, 52 of which provided sufficient information for a statistical meta-analysis, yielding 100 separate value observations in total. Focusing on recreational values, we use US$ per visit as the dependent variable in our meta-analysis. The meta-regression results reveal a number of important factors in explaining variation in coral reef recreational values, notably the area of dive sites and the number of visitors. Different valuation methods are shown to produce widely different values, with the contingent valuation method producing significantly lower value estimates. Using a multi-level modelling approach we also control for authorship effects, which proves to be highly significant in explaining variation in value estimates. We assess the prospects for using this analysis for out-of-sample value transfer, and find average transfer errors of 186%. We conclude that there is a need for further high-quality valuation research on coral reefs. 相似文献
165.
The impact of the bird flu on public willingness to pay for the protection of migratory birds 总被引:1,自引:0,他引:1
In this paper, we present the results of a unique time series analysis of contingent values and models for migratory bird protection based on an identical contingent valuation (CV) survey carried out over a three year time period since the first bird flu outbreak in 2003. Although there exists no scientific evidence for a direct relationship, migratory birds are believed to play an important role in spreading the bird flu virus worldwide. The time series analysis allows us to test the temporal stability of stated preferences for migratory bird protection and at the same time examine indirectly the possible impact of increased media attention and public awareness levels regarding the bird flu. We test the impact of the bird flu on public willingness to pay (WTP) for migratory bird protection in the final 2005 survey whilst accounting for procedural variance introduced by sequencing and question ordering-effects, but we are unable to demonstrate a direct negative relationship. A novelty of the study presented here is that respondents in the CV surveys are given the opportunity to pay an annual money amount or a one-time-off lump-sum. Annual WTP values appear to be significantly higher than one-time-off WTP values, suggesting a negative implicit discount rate. Self-selection bias is an important reason for the observed differences. We find that respondents who agree to pay annually differ significantly from respondents who wish to pay a lump-sum in terms of their underlying preferences and motivations towards migratory bird protection. 相似文献
166.
This paper studies the differences in behaviour of small and large firms, concerning job creation and job destruction, in the Dutch manufacturing sector over the period 1978–1991. We find that both job creation and job destruction rates are higher in small firms than in large ones. In addition, we found that the persistence of jobs created in slumps are much higher for small firms than for large firms. Persistence rates of job destruction are, however, less connected to the state of the business cycle and increase with firm size. More importantly, small firms seem to reallocate their jobs in a continuous way, as job turnover moves independent of the business cycle. Large firms, on the other hand, reallocate counter-cyclically. An obvious explanation for this phenomenon is that small firms are better equipped to adjust to shifts in economic circumstances. Large firms adjust only slowly and for them reallocating jobs in a recession is more advantageous than in a boom. 相似文献
167.
This article develops a model in which market structure is determined endogenously by the choice of intermediation mode. There are two representative modes of intermediation that are widely used in real-life markets: one is a middleman mode where an intermediary purchases inventory from the wholesale market and resells to buyers; the other is a market-making mode where an intermediary offers a platform for buyers and sellers to meet and trade. We show that a marketmaking middleman, who adopts a mixture of these two intermediation modes, can emerge in a directed search equilibrium and discuss implications for the market structure. 相似文献
168.
This article shows how meeting frictions affect equilibrium trading mechanisms and allocations in an environment where identical sellers post mechanisms to compete for buyers with ex ante heterogeneous private valuations. Multiple submarkets can emerge, each consisting of all sellers posting a particular mechanism and the buyers who visit those sellers. Under mild conditions, high-valuation buyers are all located in the same submarket, and low valuation buyers can be in: (i) the same submarket, (ii) a different submarket, and (iii) a mixture of (i) and (ii). The decentralized equilibrium is efficient when sellers can post auctions with reserve prices or entry fees. 相似文献