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21.
Noisy chaotic dynamics in commodity markets 总被引:2,自引:1,他引:2
Catherine?Kyrtsou Walter C.?LabysEmail author Michel?Terraza 《Empirical Economics》2004,29(3):489-502
The nonlinear testing and modeling of economic and financial time series has increased substantially in recent years, enabling us to better understand market and price behavior, risk and the formation of expectations. Such tests have also been applied to commodity market behavior, providing evidence of heteroskedasticity, chaos, long memory, cyclicity, etc. The present evaluation of futures price behavior confirms that the resulting price movements can be random, suggesting noisy chaotic behavior. Prices could thus follow a mean process that is dynamic chaotic, coupled with a variance that follows a GARCH process. Our conclusion is that models of this type could be constructed to assist in forecasting prices in the short run but not over long run time periods.First version received: June 2001/Final version received: March 2003 相似文献
22.
Kenneth J. Arrow Partha Dasgupta Karl-Göran Mäler 《Environmental and Resource Economics》2003,26(4):647-685
We are interested in three related questions:(1) How should accounting prices be estimated?(2) How should we evaluate policy change in animperfect economy? (3) How can we check whetherintergenerational well-being will be sustainedalong a projected economic programme? We do notpresume that the economy is convex, nor do weassume that the government optimizes on behalfof its citizens. We show that the same set ofaccounting prices should be used both forpolicy evaluation and for assessing whether ornot intergenerational welfare along a giveneconomic path will be sustained. We also showthat a comprehensive measure of wealth,computed in terms of the accounting prices, canbe used as an index for problems (2) and (3)above. The remainder of the paper is concernedwith rules for estimating the accounting pricesof several specific environmental naturalresources, transacted in a few well knowneconomic institutions. 相似文献
23.
Enrico Bellino 《Journal of Economics》1997,65(1):41-54
In the last 10–15 years a lot of attempts has been devoted to study the calssical process of convergence of market prices toward natural prices. The two forces that one has thought could achieve this target were capital mobility, that determines the dynamics of output, and demand-supply forces, that determine the dynamics of prices. In this article a model of classical competition is proposed in which a full-cost pricing mechanism is adopted in the rule of evolution of market prices. An asymptotical stability result of long-run equilibrium is proved for a two-commodity model with and without a final demand. 相似文献
24.
外生冲击与房地产真实价格波动--对1998~2003年中国31省(市、区)的实证研究 总被引:1,自引:0,他引:1
文章首先根据经济学模型界定了两个重要指标:自相关系数与收敛系数.认为不同的外生冲击对这两个系数有不同的影响,而它们决定了房地产真实价格波动形态的差异.在此基础上,文章利用1998~2003年中国31个省(市、区)的面板数据对中国房地产市场进行了实证研究,其结论是,在真实人均可支配收入和真实建筑成本较高、真实税后住宅抵押贷款利率较低的地区有较大的自相关系数和较小的收敛系数,从而房地产真实价格具有更大的波动性.为使房地产真实价格在均衡价格附近平稳运行,降低开发成本和提高消费者购买成本能收到较好的效果. 相似文献
25.
We consider whether oil prices can account for business cycle asymmetries. We test for asymmetries based on the Markov switching
autoregressive model popularized by Hamilton (1989), using the tests devised by Clements and Krolzig (2000). We find evidence
against the conventional wisdom that recessions are more violent than expansions: while some part of the downturn in economic
activity that characterises recessionary periods can be attributed to dramatic changes in the price of oil, post-War US economic
growth is characterized by the steepness of expansions.
First Version Received: December 2000/Final Version Received: September 2001 相似文献
26.
Karl-Göran Mäler 《Environmental and Resource Economics》2007,37(1):63-75
Green net national product was thought to be one way of measuring sustainable income. However, David Pearce understood that
a better measure of sustainable development was to look at what a generation is leaving in form of capital assets to later
generations. In this article, his arguments and insights are highlighted against recent theoretical advances. 相似文献
27.
我国旅游价格管理:现状、改革背景与政策分析 总被引:2,自引:0,他引:2
旅游业发展是一项复杂的系统工程,需要各相关行业和各项政策措施的配套协调。由于旅游价格的杠杆效应,如何应对入世给我国旅游业带来的挑战,改革并完善与国际接轨的旅游价格管理新体制是每一个旅游价格管理工作者应当思考的现实问题。 相似文献
28.
Previous studies of UK house prices, developed from the demand and supply ofhousing or from the asset market approach have been poor in terms of robustness and ex-post forecasting ability. The UK housing market has suffered a number of structural changes, particularly since the early 1980s with substantial house price increases, financial market deregulation and the removal of mortgage market constraints through competition. Consequently, models which assume that the underlying data-generating process is stable and apply constant parameter techniques tend to suffer in terms of parameter instability. This article uses the Time Varying Coefficient (TVC) methodology where the underlying data-generating process in the UK housing market is treated as unstable. The estimation results of the TVC regression of UK house prices is compared with those obtained from three alternative constant parameter regressions. Comparisons of forecasting performance suggest the TVC regression out-performs forecasts from an Error Correction Mechanism (ECM), Vector Autoregressive (VAR) and an Autoregressive Time Series regression. 相似文献
29.
A new approach to valuing ecosystem goods and services (EGS) is described which incorporates components of the economic theory of value, the theory of valuation (USappraisal), a multi-model multiple criteria analysis (MCA) of ecosystem attributes, and a Delphi panel of experts to assign weights to the attributes. The total value of ecosystem goods and services in the various tenure categories in the Wet Tropics World Heritage Area (WTWHA) in Australia was found to be in the range AUD$188 to $211 million year−1, or AUD$210 to 236 ha−1 year−1 across tenures, as at 30 June 2002. Application of the weightings assigned by the Delphi panelists and assessment of the ecological integrity of the various tenure categories resulted in values being derived for individual ecosystem services in the World Heritage Area. Biodiversity and refugia were the two attributes ranked most highly at AUD$18.6 to $20.9 million year−1 and AUD$16.6 to $18.2 million year−1, respectively. 相似文献
30.
住宅价格与经济基本面的实证研究——以上海市为例 总被引:1,自引:0,他引:1
李慧 《广西财经学院学报》2007,20(1):60-62
近几年来,我国房地产市场发展迅速,个别区域性房地产市场出现了价格过高的现象.对此,国家采取了一系列宏观调控措施.对于房地产价格的合理与否,目前仍然存在着争议.影响住宅实际价格的因素主要是土地价格和住宅价格的历史信息.而可支配收入对价格的影响并不显著,因此应加强对不合理的房地产投机需求的调控. 相似文献