上海在碰撞中创新

上海,是我的故乡,我出生在这里,也成长在这里.和许许多多生于斯、长于斯的上海人一样,我热爱这座城市.和很多不曾离开过这座城市的上海人不一样的是,在我的青春岁月到中年长达21年的时间里,我又生活在中国的西南山乡,故而命运使得我有充分的时间来把上海和中国的内地相比较.这一比较，使得我可以用一种山里人的目光来观照上海。     

The impact of temperature on manufacturing worker productivity: Evidence from personnel data

This paper presents novel evidence on the impact of temperature on daily indoor worker productivity in a non-climate-controlled manufacturing environment in China. Combining individual worker productivity data from personnel records with weather data, it documents an inverted-U shaped relationship between temperature and labor productivity. Workers do not increase avoidance behavior. The findings suggest that the economic loss from reduced manufacturing labor productivity due to ambient temperature is quantitatively important, providing new insights into the biological effects of climate factor on human labor. Further, back-of-the envelope calculations indicate that the estimated welfare gains from preventing extreme temperatures are substantial.     

Hiring retirement-age CEOs

More than 10% of the S&P 1500 companies have hired a CEO who starts the job near or above the conventional retirement age of 65 years old. This phenomenon exists among all industries and persists over time. Firms are more likely to hire retiring CEOs when the CEO job risk is high and when the firm is in distress. Retiring CEOs receive lower total compensation, the compensation structure puts a higher weight on nonequity-based compensation, and have a shorter tenure. Retiring CEOs can be beneficial to shareholders when they are hired for the right purpose.     

跨国公司视角下我国上市公司关联交易对公司绩效影响研究

本文从关联交易对公司绩效影响的角度出发,以2016—2018三年时间为研究区间,以我国深沪两市中的全部A股上市公司为样本选择范围,运用实证研究方法建立多元回归模型,具体探究关联交易对公司绩效的影响。首先通过模型对样本总体进行回归分析,发现我国上市公司关联交易与企业绩效之间呈正相关关系；之后又加入虚拟变量并将样本分离为跨国公司基准组与非跨国公司对照组,就关联交易的正向影响强度进行对比,研究发现关联交易对跨国公司绩效的正向影响强度比非跨国公司大；在此基础上为我国上市公司关联交易的进行提出合理有效的建议。     

Research of two-period insurance contract model with a low compensation period under adverse selection

The phenomenon of adverse selection caused by asymmetric information dominates the insurance market. In this paper, based on principal-agent theory, we establish a two-period dynamic insurance contract model with a low compensation period. This model introduces the tools of a low compensation period and the increase and decrease in the bonus to identify the risk types of policyholders. We prove that this model can achieve a strict Pareto improvement relative to the two-period static insurance contract model with a low compensation period. Moreover, we also graphically analyze the conclusion, which can help insurance companies to design more comprehensive insurance contracts.     

“Modeling the impact of wars and terrorism on tourism demand in Kurdistan region of Iraq”

Portuguese Economic Journal - Recent political instabilities in the Middle East have led to strong negative impacts on the tourism sector. The aim of this study is to investigate the extent and the...     

Zombie Firms and Debt Accumulation: A Theoretical Framework and Chinese Experience

In recent years, as China has grappled with rising debt and broad economic restructure, the prevalence of zombie firms has become a critical problem. This paper provides a theoretical framework illustrating the rationale behind the occurrence of zombie firms from the perspective of banks. We develop differential equations to model a bank's expectation and the ex ante estimate that underlies its decision to refinance an insolvent borrower. An optimistic expectation is essential in zombie lending and is intrinsic to the countercyclical pattern of zombie firms. Our model also predicts that debt can build up to an unsustainable level if recovery of profitability is sluggish or the initial debt burden is too high. Examining the Chinese experience of zombie firms over 2007–2017, this paper highlights two findings. First, the share of zombie firms among Shanghai and Shenzhen A‐share listed companies demonstrates a countercyclical pattern. Second, the positive correlation between zombie share and debt accumulation across manufacturing sectors sheds light on the link between zombie firms and the rising corporate debt in China. To deal with the “zombie” problem, the government should carefully weigh its policies to avoid further distortions because the occurrence of zombie firms may be inevitable and impossible to eliminate.     

Collusion through Coordination of Announcements

A theory is developed to explain how sellers can effectively collude by coordinating on list prices (or surcharges), while leaving sellers to set their final prices. List prices are interpreted to be cheap talk announcements about cost information unknown to buyers. Buyers use those announcements to decide whom to invite to their procurement auction and the reserve price to set. By coordinating on a high list price to signal high cost, sellers produce supracompetitive prices by inducing buyers to be less aggressive, as reflected in a higher reserve price. We show that collusion can raise social welfare.     

Measuring the increasing connectedness of Chinese assets with global assets: using a variance decompositions method

This study uses the network topology of variance decompositions to investigate the connectedness of four assets (stocks, bonds, foreign exchange and commodities) across five countries (US, EU, UK, Japan and China). We find that connectedness to and from the Chinese asset markets increased significantly from 2013 to 2018, which reveals that Chinese assets have gradually become integrated into the global economy. We also investigate the volatility connectedness in economically fragile periods and find that the Chinese market acted as a transmitter of volatility in the 2015 Chinese stock crash. This finding is potentially essential to modern risk measurement and management.