Information in stock prices: the case of the 2016 U.S. presidential election

On the day before the 2016 U.S. presidential election, the odds of Hillary Clinton winning the presidency, according to political prediction markets, were above 90%. Surprisingly, Donald Trump won the Electoral College handily. In this study, we examine how movements in specific stock prices foreshadowed the eventual outcome. Specifically, we conduct a series of standard event-study tests focused on pharmaceutical companies, which became a focal point during the presidential campaign. Results show that while stocks of pharmaceutical companies significantly underperformed the market prior to the election, prices substantially increased beginning three days before the election outcome. This increase is both statistically significant and economically meaningful and robust to various event-study methodologies. These results suggest that some sectors of the stock market seemed to anticipate the election outcome.     

Land use regulation and urban land value: Evidence from China

Land use regulation has always been regarded as one of the most crucial means of macro-control of urban growth, which can affect a city’s land values directly and further determine related urban economic well-being. Since the New Type Urbanization Strategy proposed by the government in 2014, China’s mode of urban growth has been transformed from addressing “quantity” to “quality" in the urbanization process. In this case, the regulation of land use by the Chinese government plays a more important role in urban growth. With their planned land regulatory scheme, the various instruments employed by Chinese governments have quite different mechanisms influencing land prices. However, there are no rigorous studies focusing on the land use regulation system and its impact on land values to date, particular in China. This study seeks to explore how land use regulation affects urban land values through the systematic lens. We summarize the main land use regulatory instruments based on the analysis of China’s planned land use system and urban land banking system, including the construction land quota, constraints on the allowed floor area ratio (FAR) of each land transaction parcel, and land supply restrictions. A new dataset based on land transaction data from 2007 to 2016 that covers 286 prefectural cities from the country’s coastal, central, and western regions is used in the empirical analysis. The results show that the effects of the floor area ratio (FAR) on land values are significant and positive, with the residential and commercial land supply ratio being a key factor. Moreover, the results imply that the effects of constraints on FAR and commercial land supply vary between regions. These findings indicate that the Chinese land market is considerably distorted by excessive administrative interventions by local governments, in the stage of urban transition guided, the capable regulatory instruments could play an important role in adjusting urban land prices and hence impact on urban growth.     

Oil commodity returns and macroeconomic factors: A time-varying approach

This paper analyses the dynamic influence of macroeconomic factors on oil commodity returns (crude oil and heating oil) shown in monthly data over the period of 1990–2013. Using a time-varying parameter model via the Kalman filter, we find that macroeconomic factors are relevant for explaining oil commodity returns. We find that multilateral exchange rates have a negative effect on commodity returns. We confirm the existence of a strong linkage between energy and non-energy commodities. More importantly, we find shifts in global demand and SP500 effects that are not identified through the constant parameter model. These variables have had a progressively positive effect on oil commodity returns, especially since 2008.     

浅析中国大豆对外贸易的现状及问题

自从中国加入世贸组织以来,我国大豆对外贸易逆差越来越大。大豆进口量逐年增长以及对进口依存度过高等现象的存在,给国内大豆种植生产带来了一定的影响。文章主要从中国大豆对外贸易的现状着手,分别从中国大豆定价权的缺失、转基因大豆对我国大豆行业的冲击、国内政策对大豆产业的支持力度不够、大豆进口管理机制有待完善等四个方面阐述了中国大豆对外贸易所存在的问题。     

A STRUCTURAL RISK‐NEUTRAL MODEL FOR PRICING AND HEDGING POWER DERIVATIVES

We develop a structural risk‐neutral model for energy market modifying along several directions the approach introduced in Aïd et al. In particular, a scarcity function is introduced to allow important deviations of the spot price from the marginal fuel price, producing price spikes. We focus on pricing and hedging electricity derivatives. The hedging instruments are forward contracts on fuels and electricity. The presence of production capacities and electricity demand makes such a market incomplete. We follow a local risk minimization approach to price and hedge energy derivatives. Despite the richness of information included in the spot model, we obtain closed‐form formulae for futures prices and semiexplicit formulae for spread options and European options on electricity forward contracts. An analysis of the electricity price risk premium is provided showing the contribution of demand and capacity to the futures prices. We show that when far from delivery, electricity futures behave like a basket of futures on fuels.     

WHOLESALE PRICES AND COURNOT‐BERTRAND COMPETITION

This note considers the competing vertical structures framework with Cournot‐Bertrand competition downstream. It shows that the equilibrium wholesale price paid by a Cournot (Bertrand)‐type retailer is above (below) marginal costs of a corresponding manufacturer. This result contrasts with the one under pure competition downstream (i.e., Cournot or Bertrand), where the wholesale price is set below (above) marginal costs in case of a Cournot (Bertrand) game at the retail level.     

逆比较优势进口高技术含量中间品与生产技术革新

科学刻画逆比较优势进口高技术含量中间品对生产技术革新的影响效应能为制定科学进口国外中间品和提升生产技术革新速度方面的政策提供有益参考,以剖析上述效应为目标的多维细致检验结果表明：首先,制造型和服务型中间品进口技术含量逆比较优势指数对生产技术革新的影响效应呈现倒U型,进口约2.5倍于自身比较优势水平技术含量的中间品能最大化中间品进口的生产技术革新功能,这一结论在多层面检验中均稳健成立。其次,中国中间品进口技术含量逆比较优势指数处于倒U型顶点的左侧正效应区间。对于动态比较优势持续提升的中国而言,在处理好“卡脖子”风险的基础上,可适度提升中间品进口技术含量,以更好地发挥中间品进口的生产技术革新功能。最后,倒U型效应具有非常强的稳定性,多维外部冲击均无法撼动倒U型效应。为此,倒U型效应可谓协调中间品进口和生产技术革新间关系的“铁律”。     

外部经济冲击对我国进出口贸易的影响——基于新兴市场经济体的研究

本文从贸易和金融渠道对我国受到其他新兴经济体的外部冲击的可能性进行了评估,并借助GVAR(Global Vector Auto-Regressive)模型方法,考虑了世界各国的交互影响来分析新兴市场国家的宏观经济波动对中国进出口产生的影响。研究发现,区域内的新兴经济市场对我国影响更为显著,韩国、印度、中国香港发生宏观经济波动时对我国进出口贸易可能造成较大的影响。基本上,中国对外贸易对韩国遭受冲击后的反应快且大,但受影响时间较短,人民币汇率波动在应对外部冲击时发挥了一定作用。中国和印度贸易合作关系大于竞争关系。     

流动性过剩与股票价格重估

在固定汇率与资本管制框架下,剩余储蓄的持续增加必然导致流动性过剩,对股票市场而言,只有当实体经济持续的剩余储蓄增加引起流动性过剩时,才会推动股票市场估值中枢的剧烈抬升.对近期经济指标的分析表明,股票市场重估将会持续下去,而货币政策紧缩引起的投资下降会进一步扩大剩余储蓄,加快重估的进程.