Interrelationship between crude oil and the stock markets of major demanders and suppliers in emerging and developed markets

This paper investigates the time-varying relationship between the stock markets of advanced and emerging oil-exporting and oil-importing countries and the international crude oil price indices. The results reveal that the time-varying among the oil-exporting and oil-importing countries responds similarly to aggregate supply- and demand-side effects. Oil-exporting countries have a slightly higher integration with the oil markets, while oil supply shocks have a slightly higher impact on emerging oil-exporting countries. The oil markets exhibit a lower time-varying relationship with the Asia-Pacific oil-importing markets, which indicates those markets may be attractive to investors during periods of turbulence in the oil market.     

Risk‐taking channel of monetary policy

One of the most robust stylized facts in macroeconomics is the forecasting power of the term spread for future real activity. We propose a possible causal mechanism for the forecasting power of the term spread, deriving from the balance sheet management of financial intermediaries and the “risk‐taking channel of monetary policy.” Monetary tightening leads to the flattening of the term spread, reducing net interest margin and credit supply. We provide empirical support for the risk‐taking channel.     

精益化物流管理对药品供应仓储能力及药品周转时间的影响

目的探讨精益化物流管理对药品供应仓储能力及药品周转时间的影响。方法回顾性分析2013年8月至2014年7月中山大学附属第三医院粤东医院传统物流管理模式下的药品管理情况,以及2014年8月至2015年7月施行精益化物流管理模式后的药品管理情况。比较分析两种模式下的药品缺货率、仓储能力及药品周转时间情况。结果精益化物流管理下的A、B、C类药品所占实际面积与传统物流管理比较下降19.25%,总量增加9.86%;精益化物流管理下的A、B、C类药品周转率高于传统物流管理,差异有统计学意义(P<0.05);精益化物流管理下的A、B、C类药品周转时间短于传统物流管理,差异有统计学意义(P<0.05)。结论精益化物流管理模式可显著提升医院药品供应仓储能力,缩短药品周转时间,从而可提升药品管理整体水平,为医院带来效益,为患者提供高质量药品服务。     

产权性质、企业精准扶贫行为与资本市场反应

以2015~2018年A股上市公司为研究对象，考察企业精准扶贫行为动因与方式选择及所引起的市场反应。结果发现：国有企业和政治关联民营企业精准扶贫更积极，但两者精准扶贫方式存在差异，国有企业更倾向整合型精准扶贫，政治关联民营企业则倾向慈善型精准扶贫。进一步，企业参与精准扶贫产生了积极市场反应；相较国有企业，民营企业精准扶贫产生的市场反应更积极，尤其体现在政治关联民营企业中。同时，扶贫方式及扶贫持续性对精准扶贫信息披露的市场反应有影响。     

政府补贴下考虑企业环保努力的闭环供应链决策分析

在消费者具有环保意识的背景下，分析有无政府补贴时制造商环保努力对各节点企业价格、需求、利润等决策的影响，并进一步探讨补贴在各类最优策略中的作用。研究表明：环保努力能提高两类产品销售价格、扩大新产品需求，但对再制造品需求无影响；存在最优环保努力水平，使无政府补贴下制造商及系统整体利润最大；一定范围内补贴能遏制环保努力导致的再制造品销售价格上升，但对新产品价格无影响，且对零售商来说高补贴未必能带来高收益；消费者环保意识和制造商环保努力可以通过政府补贴影响产品需求和企业收益。     

Market Reactions to Corporate Governance Ranking Announcements: Evidence from Taiwan

This study examines whether market participants react to the announcements of corporate governance ranking exercises. As a regulatory innovation, the Financial Supervisory Commission in Taiwan initiated and administered two ranking exercises, one in 2015 and the other in 2016, on all publicly listed companies. Adopting anchoring-and-adjustment theory, the study predicts that market participants will react strongly to the second announcement if the ranking obtained in the second exercise turns out to be better than the ranking in the first round. Employing an event study methodology, the study shows that market participants react positively and significantly to firms ranked in the top 50% in the second corporate governance exercise. Their reactions to the announcement are even stronger among those that did not list in the top 20% in the first exercise, but made it into the top 50% in the second one. Overall, our analyses support that anchoring-and-adjustment theory effectively explains market participants’ behaviour. Since the monitoring of the board of directors and investors may not effectively mitigate the potential moral hazard committed by family owners/executives, our empirical evidence demonstrates that a ranking exercise probably can be employed to supplement routine corporate governance disclosures made in annual reports, in order to strengthen the check-and-balance mechanism and reduce the risk of principal–principal conflicts. In conclusion, we discuss the implications of the research findings and propose directions for future studies.     

On the role of Islamic and conventional banks in the monetary policy transmission in Malaysia: Do size and liquidity matter?

This paper empirically investigates the impact of monetary policy on the credit supply of Islamic versus conventional banks of Malaysia using an unbalanced panel dataset over the period 2005-2016. While estimating the effects of three alternative measures of monetary policy on banks' credit supply, we include several bank-specific and macroeconomic variables in the specification as control variables. We provide strong evidence on the existence of the credit channel of monetary policy transmission mechanism in Malaysia. Yet, we show that Islamic banks respond considerably less to changes in monetary policy instruments as compared to their conventional counterparts. We also find that the monetary policy measures affect small-sized banks and less-liquid banks more as compared to large-sized and more-liquid banks. Our findings suggest that for an effective monetary policy, there is a vital need to consider the nature of Islamic banking while devising any monetary policy instruments to manage credit supply in the economy.     

Assessing effects of federal crop insurance supply on acreage and yield of specialty crops

Crop insurance may affect harvested acreage and yield by influencing producers’ behavior such as land allocation and input use. Although specialty crops are a major source of farm income, especially on the U.S. west coast, they have not received as much attention as field crops in previous empirical studies. This paper assesses the effect of moral hazard and adverse selection associated with the federal crop insurance program (FCIP) on the acreage and yield of major specialty crops in California. An econometric method that expands the switching regression model is developed to assess the effect. Results suggest that federal crop insurance can change specialty crop growers’ production responses to climate and soil conditions. The moral hazard effect tends to increase the acreage and yield of the specialty crops, whereas the adverse selection effect tends to have the opposite effect. The overall effect of the FCIP on acreage and yield of specialty crops is found to be moderate.     

What Can Acreage Allocations Say about Crop Supply Elasticities? A Convex Programming Approach to Supply Response Disaggregation

This article has two goals. The first is to extend previous results regarding calibration of land‐constrained programming models of agricultural supply against supply elasticities to the general case of multiple constraints. The second goal is to demonstrate how the resulting calibration conditions can be used as a source of identification to disaggregate crop supply elasticities down to the level at which static information on acreage allocations is available. We propose an information‐based disaggregation algorithm to systematically generate regionalised elasticities from a single prior, and provide an empirical illustration.     

供应链风险评估:一个贝叶斯——量子决策的推理网络研究范式

为了分析供应链运作过程中存在风险的性质,采用贝叶斯网的方式,构建了供应链风险因素、风险事件之间的系统模型,并在量子概率的基础上,分析各种风险发生的规律,并分析了供应链风险事件之间存在的共同发生的可能性。结论认为:供应链风险是一个具有多源、多维、交叉等多种属性的复杂系统,其中,道德风险与牛鞭效应最容易发生,双重边际效应、资金链断裂以及牛鞭效应的影响最大;若干种风险之间按照一个较高的概率发生着共振现象。