外商直接投资对安徽经济发展作用的实证分析

本文利用统计数据,从实证角度分析了外商直接投资对安徽经济发展的影响。认为外商直接投资在促进安徽经济增长、增加固定资产投资和进出口贸易方面作出了重要贡献,但对产业结构调整和升级、地区经济协调发展等方面的促进作用并不明显。对今后如何吸引更多的外商直接投资及提高外商直接投资质量,进一步促使外商直接投资发挥更好的作用提出了建议。     

S波段频率综合技术研究

本文论述的Ｓ波段频率综合器，频率范围是２．６１￣３．９６ＧＨｚ，频率步进为２．５ＭＨｚ，相位噪声指标〈－（８８￣９３）ｄＢｃ／Ｈｚ，长期频率稳定度为１×１０＾－９／日，杂散抑制优于５５ｄＢ，谐波抑制优于５０ｄＢ，输出功率大于１４ｄＢｍ。     

去伪存真:油价趋势与股票市场——来自“一带一路”35国的经验证据

油价波动深刻影响全球经济,严重时会造成全球股市动荡,甚至引发系统性金融风险。然而油价中的信息噪音严重阻碍国际油价对股票市场的预测效果。本文提出的移动平均法可有效减弱信息噪音,研究表明,本文基于移动平均法构建的油价趋势因子对“一带一路”沿线国家股票市场具有良好的样本内和样本外可预测性。进一步研究发现,国际油价波动对产油国和非产油国股票市场的影响存在非对称性。本文为国际油价冲击股票市场提供了新的有力证据,同时本文研究成果提示了油价风险,对维持我国股票市场稳定,保持金融稳定具有一定意义。     

对宽带相参转发应答机构成的一种设想

本文在原单信道连续波相参转发应答机的基础上，提出了一种瓣的模式，以适应宽频带，低相噪相参转发应答机的要求，并加以论证分析。     

Comparing Tax and Tax Reallocation Payments in Financing Rail Noise Abatement Programmes: Results from a Stated Choice Valuation Study in Italy

The paper examines the use of stated choice experiments (SC) to assess the economic value of alternative rail noise reduction interventions on the Brennero railway in Italy. The paper formally tests the econometric robustness of the SC estimates under three payment regimes: (a) a regional tax, where consumers must trade off welfare gains due to noise reduction for part of their income; (b) a transport tax reallocation scheme, where consumers must trade off a part of the tax payments that are currently spent on the public transport sector; and (c) an administration tax reallocation scheme, where consumers must trade off a part of the tax payments that are currently spent on the administration sector. The test results are varied. On the one hand, the SC estimates are found to be statistically different for the tax reallocation and the tax introduction regimes. This confirms previous valuation research results, and thus reiterates the hypothesis that states the inequality between marginal values of private income and public money. On the other hand, the SC estimates are not found to be statistically different for the two proposed tax reallocation regimes, suggesting that, in the case study investigated here, the marginal value of public money does not depend upon the budget source.     

Monetary valuation of aircraft noise: A hedonic analysis around Amsterdam airport

In densely-populated countries and in particular in large metropolitan areas, the presence of so much human activity causes all sorts of negative externalities, for example traffic noise disturbance. These externalities call for corrective measures by the government. Economists have developed a number of procedures that provide reasonable estimates on the monetary value of some amenities and externalities. In this paper we develop a spatially-explicit hedonic pricing model for house prices in order to quantify the social cost of aircraft noise disturbance in monetary terms. While focusing on aircraft noise around Amsterdam airport in the urban fringe of the Amsterdam region, a key point in our analysis is that we account for background noise. We do this by taking multiple sources of traffic noise (i.e. road, railway and aircraft noise) into account simultaneously and by setting threshold values for all three sources of noise above which sound is generally experienced as nuisance. Based on our regression results we conclude that a higher noise level means ceteris paribus a lower house price. Air traffic has the largest price impact, followed by railway traffic and road traffic. These model outcomes can subsequently be used to estimate the marginal and total benefits of aircraft noise reduction in the studied area around Amsterdam airport. We find a marginal benefit of 1 dB noise reduction of 1459 Euro per house, leading to a total benefit of 1 dB noise reduction of 574 million Euros.     

信息透明度与散户的交易选择——基于深圳交易所上市公司的实证研究

股市的风险往往归因于散户的交易,大力发展机构投资者成为提高市场效率的不可挑战的信条。透过微结构数据的分析,本文发现散户交易存在过度自信特征,可能过度高估私有信息精确度,导致错误定价信息。分离了过度自信的因素后,本文发现信息透明度为散户交易的重要依据。更为重要的是本文发现,相对于散户而言,信息透明度对机构投资者交易的影响较低,说明了信息透明度对处于信息劣势的投资者具有更重要的现实意义。     

Buyer information and the hedonic: The impact of a seller disclosure on the implicit price for airport noise

Revealed preference methods like the hedonic model generally assume economic agents have access to publicly available information and use it effectively. In the housing market, the recent proliferation of seller disclosure laws suggests that policymakers perceive buyers to be less than “fully informed,” presumably since they face higher information acquisition costs than sellers. The introduction of an airport noise disclosure in the residential housing market surrounding the Raleigh–Durham International Airport is used as a quasi-random experiment to analyze the impact of this type of information asymmetry between buyers and sellers on housing prices. The results from a regression analysis that controls for potential spatial and temporal confounders, suggest that the airport noise disclosure reduced the value of houses most heavily impacted by airport noise by 2.9 percent. This represents approximately a 37 percentage point increase in the implicit price of airport noise. The results provide evidence that publicly available information, such as that available for airport noise, may not be adequately considered by all buyers. They also suggest that the information environment should be carefully considered when using housing data and the hedonic model to value urban amenities and disamenities.     

Homevoters vs. leasevoters: A spatial analysis of airport effects

We use a public referendum on a new aviation concept in Berlin, Germany, as a natural experiment to analyze how the interaction of tenure and capitalization effects influences the outcome of direct democracy processes. We distinguish between homevoters, i.e., voters who are homeowners, and leasevoters, i.e., voters who lease their homes. We expect that homevoters would be more likely to support initiatives that positively affect the amenity value of a neighborhood because some of the related benefits of leasevoters are neutralized by adjustments in market rents. Likewise, homevoters would be more likely to oppose initiatives that negatively affect the amenity value of a neighborhood. Our empirical results are consistent with these expectations, implying that public votes on local public goods do not necessarily reflect the spatial distribution of welfare effects in mixed-tenure environments.     

The cost of aircraft noise – Does it differ from road noise? A meta-analysis

This paper aims at studying the difference in cost between aircraft noise and road noise using meta-analysis. 90 NDI estimates have been gathered from the literature (a total of 53 studies), out of which 44 are estimates for aircraft noise and 46 are for road noise. The results of the meta-regression suggest that aircraft noise costs somewhere in the range of 0.40 and 0.60 percent more per increased dB than road noise. Knowing the associations between these costs of noise pollution can be a convenient tool for planners and policy makers, offering an opportunity to make predictions of aircraft noise when only estimates of road noise are available, and vice versa.