乡村森林旅游项目升级发展过程政商博弈探微——基于Z风景区3A创4A的案例分析

以Z风景区3A创4A愿景中当地政府与风景区经营商两个主体的决策行为为研究对象,以制度经济学为理论基础,采用博弈论模型进行分析。结果表明:在政府和经营商目标不一致的前提下,从政府来说,在政绩驱动下急于达到创4A目标,但政府又不能滥用纳税人的钱追加投资,其意愿是让商家继续投资,为创4A发力;从商家来说,虽然创4A有利于项目营利空间,但是客观上有规避未来市场不确定性和投资回报周期长双重风险的意识,还可能由于政府对项目创4A的急切性,导致商家存在"政府有可能追加投资,自己"搭便车"的"等靠要"机会主义思想,追加投资意愿不高;反过来也可能存在政府等待商家投资的搭便车行为。为此,提出以政商共同利益最大化为目标,通过改变激励措施,使政商博弈达到合作状态下较优的均衡结果。     

A new multiscale decomposition ensemble approach for forecasting exchange rates

Due to the high complexity and strong nonlinearity nature of foreign exchange rates, how to forecast foreign exchange rate accurately is regarded as a challenging research topic. Therefore, developing highly accurate forecasting method is of great significance to investors and policy makers. A new multiscale decomposition ensemble approach to forecast foreign exchange rates is proposed in this paper. In the approach, the variational mode decomposition (VMD) method is utilized to divide foreign exchange rates into a finite number of subcomponents; the support vector neural network (SVNN) technique is used to model and forecast each subcomponent respectively; another SVNN technique is utilized to integrate the forecasting results of each subcomponent to generate the final forecast results. To verify the superiority of the proposed approach, four major exchange rates were chosen for model comparison and evaluation. The experimental results indicate that our proposed VMD-SVNN-SVNN multiscale decomposition ensemble approach outperforms some other benchmarks in terms of forecasting accuracy and statistical tests. This demonstrates that our proposed VMD-SVNN-SVNN multiscale decomposition ensemble approach is promising for forecasting foreign exchange rates.     

Forecasting Foreign Exchange Markets Using Google Trends: Prediction Performance of Competing Models

Abstract

Foreign exchange markets affect a variety of humans and businesses worldwide and there is a wide array of literature aimed at providing more accurate forecasts of their movement. In an attempt to quantify human expectations, Google query search terms related to foreign exchange markets are used to help explain and predict foreign exchange rates between the United States’ dollar and ten other currencies during the time period of January 2004 and August 2018. We find evidence that, while Google Trends can be helpful in prediction, it is necessary to implement some sort of shrinkage or sparsity scheme on the coefficients.     

生产分工视角的中国对美国货物出口竞争力验证

考虑生产分工对中美间经贸联系程度、贸易规模和结构的影响,基于生产分工下价值链视角,构建出口竞争力测度指标体系,验证中国对美国货物出口竞争力。结果显示:2016年及之前,中国仅在杂项制品大类上,对美国显示出较强出口竞争力,机械和运输设备、动物和植物油、油脂和蜡我国具有比较优势,化学成品及有关产品、按原料分类的制成品双方竞争性较强,其余大类上,中国对美国出口竞争力不具优势。引入其他国家作对比的分析结果表明:中国对对比国家均无显著出口竞争力,而且对美国出口具有单价优势的资本技术密集型产品,对这些国家出口多缺乏单价优势,而2017年以来对美国和对比国家的贸易变化,进一步勾画出中国对美国货物出口竞争力不足。在生产分工主导全球产业发展背景下,提升我国在全球生产分工中的参与地位,宜强化自主技术研发、提升外资质量和技术外溢、加快"走出去"学习先进技术。     

Herding behavior in the Pakistan stock exchange: Some new insights

This study attempts to examine the presence of herding behavior in the Pakistan Stock Exchange (PSX). The novel contribution of this paper is that it investigates the herding phenomenon from a large number of facets such as herding of firms towards market, herding of firms towards industry portfolios, herding of industry portfolios towards market, herding in mostly traded stocks and in large and small stocks, and herding in the crisis period. For this purpose, we use the herding behavior model of Christie and Huang (1995) on the daily closing prices data of 609 firms listed on the PSX from January 2004 to December 2013. Results show that individual firms do not herd towards market index, except when the market experiences a negative return of 5%. However, when we sort firms into small and large groups based on median market capitalization, results indicate that large firms show herding behavior in extreme market movements. Further, we find that firms in several industries herd towards their industry portfolios. However, we find weak evidence of industry portfolios herding towards the market. We also segregate the impact of financial crisis of 2008 from normal times. These findings support results of our baseline estimation.     

The impact of exchange rate deviations from relative PPP equilibrium on the U.S. demand for foreign equities

Applying fixed-effects panel data, this study investigates the impact of U.S. dollar exchange rate movements during different exchange rate states (overvaluation and undervaluation) on the monthly real gross and real net purchases of foreign equities by U.S. residents over the post-Plaza Accord period. The foreign equities come from 22 developed and 25 developing countries. Previous research has posited two alternative hypotheses regarding the relationship between exchange rates and foreign investment. These are the wealth effect and the profit-oriented effect. The evidence herein suggests that these two hypotheses coexist. We find robust evidence for a negative relationship between the exchange rate movements of an undervalued U.S. dollar and the demand for foreign equities. For developed countries, the wealth effect dominates the profit-oriented effect when the U.S. dollar is overvalued, while, for developing countries, the profit-oriented effect dominates the wealth effect. The results emphasize the importance of considering exchange rate states derived from a relative PPP equilibrium when analyzing U.S. allocations to foreign equities. The findings with respect to the macroeconomic control variables are mainly in agreement with the predictions of international financial theory. Some of the results, however, disappear or become inconclusive for the period after the bankruptcy of Lehman Brothers. This may be explained by the increased uncertainty in international financial markets following this unprecedented event. The findings are robust with respect to different constructed equilibrium exchange rates.     

Residents’ support for red tourism in China: The moderating effect of central government

This study proposes and tests a model that incorporates two competing theories of political trust, institutional trust and cultural trust, to examine community support for “red tourism” development. Using data gathered from residents living in close proximity to Jinggangshan Scenic Area in China, this study examines the influence of authoritarian values, particularly as they relate to level of residents’ power, their level of trust in government, and their effects on support for “red tourism.” Findings suggest that trust in central government moderates the relationship between trust in local government and support. Future studies should utilize the institutional trust framework to assess residents’ trust in the local government and the cultural trust framework to assess trust in the central government.     

Financial constraints and asset pricing: comprehensive evidence from London Stock Exchange

This study provides comprehensive evidence on the pricing of financial constraints (FC) risk on London Stock Exchange during the period 1988–2013. Utilizing a large number of proxies for FC, we find that investors are not compensated with higher premia for holding shares of financially constrained firms. To the contrary, in most of the cases, the most constrained firms significantly underperform, both statistically and economically, the least constrained ones. Focussing on the Whited–Wu index to construct a zero-cost FC factor that goes long the most constrained firms and sells short the least constrained ones, we find that this factor carries a significantly negative premium and it is priced in the cross-section over and above the commonly used risk factors.     

Political economy of taxation,debt ceilings,and growth

This study presents voting on policies, including labor and capital income taxes and public debt, in an overlapping-generations model with physical and human capital accumulation, and analyzes the effects of a debt ceiling on a government's policy formation and its impact on growth and welfare. The results show that the debt ceiling induces the government to shift the tax burdens from the older to younger generations, but stimulates physical capital accumulation and may increase public education expenditure, resulting in a higher growth rate. Alternatively, the debt ceiling is measured from the viewpoint of a benevolent planner and lowering the debt ceiling (i.e., tightening fiscal discipline) makes it possible for the government to approach the planner's allocation in an aging society.     

Relationship between oil,stock prices and exchange rates: A vine copula based GARCH method

In this paper, we apply a vine copula approach to investigate the dynamic relationship between energy, stock and currency markets. Dependence modeling using vine copulas offers a greater flexibility and permits the modeling of complex dependency patterns for high-dimensional distributions. Using a sample of more than 10 years of daily return observations of the WTI crude oil, the Dow Jones Industrial average stock index and the trade weighted US dollar index returns, we find evidence of a significant and symmetric relationship between these variables. Considering different sample periods show that the dynamic of the relationship between returns is not constant over time. Our results indicate also that the dependence structure is highly affected by the financial crisis and Great Recession, over 2007–2009. Finally, there is evidence to suggest that the application of the vine copula model improves the accuracy of VaR estimates, compared to traditional approaches.