我国蔬菜价格垂直传导的非对称性研究——基于面板VAR模型的实证

运用面板向量自回归模型(PVAR)对我国蔬菜的生产价格、批发价格和零售价格的垂直传导机制进行实证研究,结果表明我国蔬菜三种价格的波动幅度和增长速度自上而下呈依次增强的特征;价格的正向传导顺畅,逆向传导存在一到两期的滞后,传导强度上存在正向传递强度明显高于逆向传递的非对称现象;生产价格在整个价格波动的传导链中占主导地位,蔬菜价格的稳定在很大程度上依赖于蔬菜的生产环节。     

土地供应方式转变对房价的影响

中国城市土地供应方式经历了由无偿划拨到有偿出让,从协议出让到招拍挂出让的转变历程,当前招拍挂已经成为经营性用地的唯一出让方式。在地方政府"土地财政"的利益驱动下,土地单一垄断供应体制下的"招拍挂"土地出让方式已经成为影响房价上涨的重要因素之一。要遏制房价过快上涨的势头,应从根源上切断地方政府在房地产市场中的利益链条。     

Quantile serial dependence in crude oil markets: evidence from improved quantilogram analysis with quantile wild bootstrapping

We examine the quantile serial dependence in crude oil prices based on the Linton and Whang’s quantile-based portmanteau test which we improved by means of quantile wild bootstrapping (QWB). Through Monte Carlo simulation, we find that the quantile wild bootstrap-based portmanteau test performs better than the bound testing procedure suggested by Linton and Whang. We apply the improved test to examine the efficiency of two crude oil markets – WTI and Brent. We also examine if the dependence is stable via rolling sample tests. Our results show that both WTI and Brent are serially dependent in all, except the median quantiles. These findings suggest that it may be misleading to examine the efficiency of crude oil markets in terms of mean (or median) returns only. These crude oil markets are relatively more serially dependent in non-median ranges.     

安徽省蔬菜价格保险研究

安徽省是全国蔬菜大省,产业优势比较明显,增收作用突出。根据安徽省蔬菜产业发展现状、蔬菜价格波动情况等提出蔬菜价格险的必要性,并分析了保险体系的介入应如何正确引导蔬菜均衡种植,以此稳定菜价,保障供给。     

THE DYNAMIC PROPERTIES OF ALTERNATIVE ASSUMPTIONS ON PRICE ADJUSTMENT IN NEW KEYNESIAN MODELS

This paper presents a classification of the different new Phillips curves existing in the literature as a set of choices based on three assumptions: the choice of the structure of price adjustments (Calvo or Taylor), the presence of backward indexation and the type of price contracts (fixed prices or predetermined prices). The paper suggests study of the dynamic properties of each specification, following different monetary shocks on the growth rate of the money stock. We develop the analytical form of the price dynamics, and we display graphics for the responses of prices, output and inflation. We show that the choice made for each of the three assumptions has a strong influence on the dynamic properties. Notably, the choice of the price structure, while often considered as unimportant, is indeed the most influential choice concerning the dynamic responses of output and inflation.     

我国农产品价格与热钱的实证研究

自2005年中国汇率形成机制改革以来,热钱流入中国的话题就开始趋热。在2006年末,世界农产品价格大幅上涨,围绕粮食、食品的国内外投资和交易成为新的经济热点。鉴于最近中国农产品价格发生了强烈波动的事实和农产品市场的重要性,本文通过对热钱规模和农产品价格指数的月度数据进行实证分析,得出热钱与农产品价格存在均衡关系,是农产品价格变化的Granger原因。     

Foreign exchange markets and oil prices in Asia

In this paper, we examine whether oil price can predict exchange rate returns for 14 Asian countries. A new GLS-based time series predictive regression model proposed by Westerlund and Narayan (WN, 2012) is used. The main finding is that higher oil price leads to future depreciation of the Vietnamese dong but future appreciations of the local currencies of Bangladesh, Cambodia, and Hong Kong. A comparison of the widely used Lewellen (2004) and WN (2012) estimators show that both provide similar results in in-sample analysis, although WN is relatively superior at longer horizons in out-of-sample analysis.     

Real estate prices in Beijing, 1644 to 1840

This paper provides the first estimates of housing price movements for Beijing in late pre-modern China. We hand-collect from archival sources transaction prices and other house attribute information from the 498 surviving house sale contracts for Beijing during the first two centuries of the Qing Dynasty (1644–1840), a long period without major wars, political turmoil, or significant institutional change in the Chinese capital. We use hedonic methods to construct a real estate price index for Beijing for the period. The regression analysis explains a major proportion of the variance of housing prices. We find that house prices grew steadily for the first half-century of the Qing Dynasty and declined afterwards in both nominal and real terms through the late eighteenth century. Nominal prices grew starting in the late eighteenth century and declined from the early nineteenth century through 1840. But these price changes occurred with contemporaneous price changes in basic measures of the cost of living: there was little change in real terms to the end of our period.     

食糖成本与价格形成机制对广西制糖产业影响研究

在国家十大产业振兴规划出台的背景下,对广西的特色轻工业——制糖产业进行研究,首先分析食糖成本与价格的形成的内部机理,然后结合广西的实际情况对广西制糖产业的影响作出探析,最后针对这些影响提出建议与对策。     

中国资产价格与货币政策关系实证研究综述

国内学者对中国资产价格和货币政策的相关性进行了大量的实证研究,对货币政策的制定具有一定指导意义。这些研究成果在变量计量、研究方法等方面进行了大量探索,为该领域的理论研究做出了积极贡献。但是目前的成果也存在对中国资产结构、资产市场演变等研究背景考虑不足和成熟计量模型缺失等缺陷。