资源依赖、制度安排与区域创新能力 —基于空间杜宾模型

区域创新能力提升是我国加快建设创新型国家、实现高质量发展的现实需求。 本文通过构建涵盖资源依赖、制度安排与区域创新能力的理论模型分析其内在关系并提出假 说，运用2000-2016年全国30个省（区、市）的面板数据与空间杜宾模型，检验三者之间的影 响及空间溢出效应。研究结果表明：（1）资源依赖程度越高，越不利于本地区创新能力提升；（2）有效率的制度安排对区域创新能力有正向促进作用；（3）从空间溢出效应来看，本地区 资源依赖程度越高，越抑制周边地区区域创新能力提升，有效的制度安排能助推周边地区创新能力提高。     

Eco-labels and product longevity: The case of whitefish in UK grocery retailing

In recent years, eco-labeling has become an increasingly used tool to signal sustainable sourcing of (sea-) food. While the literature has focused on price premiums associated with the labels, it is noted in this paper that eco-labels can also contribute to profitability by reducing cost, e.g. through longer product lifespans. Hence, eco-labels can be beneficial in a supply chain even without a price premium. This study applies duration analysis to explore whether two eco-labels (the MSC label of the Marine Stewardship Council and a line-caught label) influence product longevity of whitefish products in eight different grocery retailers in the UK. The results show that MSC labeled products have a 64.7% lower risk of being withdrawn from the shelves compared to non-MSC products, while products with the line-caught label have a 32.8% lower risk of being withdrawn than products without this label. The results also indicate that the influence of the eco-labels on product longevity vary considerably between the retailers.     

Dependent relationships between Chinese commodity markets and the international financial market: Evidence from quantile time-frequency analysis

In this article, the quantile time–frequency method is utilized to study the dependence of Chinese commodities on the international financial market. The impacts of risk management and diversification benefits of different portfolios are examined by calculating the reduction in downside risk. Moreover, we estimate and compare Sharpe Ratios (SRs) and Generalized Sharpe Ratios (GSRs) based on the frequencies of the investigated portfolios. Our empirical results reveal a strong asymmetric response from Chinese commodity markets. Specifically, we find that gold is a safe-haven asset, and due to negative correlations found at lower quantiles in medium and long term, an increase in the USD index damages bull commodity markets but boosts bear conditions under long-term investments, and negative (positive) tail correlations with interest rates (IRs) in bull (bear) markets are observed. It is proven that WTI can decrease short-run risks while USD and GOLD are more efficient in the diversification of downside risk. Adding international commodities may not improve the returns of Chinese commodities at given risk levels in the short and medium term through SRs and GSRs. In brief, investors should consider these dependence structures and modes of risk management in terms of time and frequency.     

Duration of price promotion and product profit: An in-depth study based on point-of-sale data

Anecdotal evidence has shown that retail price promotions can help small and medium-sized retailers enhance their sales, and thus profits. However, most marketing managers usually stop a promotion after a certain duration. This study aims to explain why these retailers discontinue their price promotion. Our approach posits that overall contributions of a price promotion to the product profit progressively diminish with time. In this study, we present a theoretical framework to explain the relationship between duration and profit effects of price promotion and propose statistical models to empirically examine this framework using point-of-sale (POS) data. Our findings provide empirical support that the effect of price promotion on the product profit has a downward trend with elapsed time. The results are helpful for marketers to understand how price promotions dynamically influence product profit and when the promotion should be terminated.     

企业成功创新经历与未来创新绩效

结合组织学习和企业二元式创新理论，探讨成功创新经历对企业未来创新绩效的影响。以2000—2017年中国制造业上市企业专利数据为基础，研究发现，成功创新经历可以显著提高企业后续专利申请数量。但是依据创新实质和创新幅度将创新分为探索式创新与利用式创新后，发现企业后续专利申请主要体现在利用式创新方面，不利于企业探索式创新。间接影响因素检验表明，企业间合作研发程度越高，成功创新经历越能够显著提升其后续创新质量，但是路径依赖越强的企业，其后续创新质量越差。从新的视角推进企业成功创新经历研究，就当前关于成功创新经历对后续创新绩效的影响悖论给出解释机制，同时对企业增强创新能力、维持长期竞争优势具有重要启示作用。     

历史制度主义视野下我国科技人才政策战略转型与变革逻辑

改革开放以来，我国科技人才政策历经恢复调整、初步确立、转型完善、深化改革到全面建设等5个发展阶段。基于历史制度主义分析范式，探究我国科技人才政策变革逻辑与动力机制。结果显示，路径依赖是我国科技人才政策保持结构稳定性与内在连贯性的基本阐释工具，体现在回报递增效应、多主体协作效应和制度场域自我强化等方面；关键节点在政治逻辑作用下成为科技人才政策变革的原始驱动力，其本质是在保证政治属性不变的前提下建构以绩效为核心的强制性制度变迁。进一步，在借鉴发达国家成熟经验的基础上，构建以“缓冲器”式中介组织为核心的行政认同、市场协调和学术本位之间的合理张力，进而推进利益相关者群体利益协调与整合机制成为我国科技人才政策不断自我革新的有效治理路径。     

Customer and Supplier Portfolios: Can Credit Risks be Managed Through Supply Chain Relationships?

While supply chain risk has been the subject of an ever‐increasing amount of research attention, the importance of credit risk has been less studied, at least by supply chain researchers. Yet, there may be risks inherent within a firm's portfolios of supply chain relationships that are manifested in the credit risk of a firm. Moreover, portfolio characteristics may serve as a signal to the external market regarding these risks. While customer and supplier portfolio characteristics may impact the firm's exposure to risks, the specific issue of how portfolio characteristics relate to credit risk has rarely been examined by supply chain scholars. This research bridges extant works in supply chain management and finance to relate supply chain characteristics to a critical reputational outcome, namely credit ratings. In this research, we utilize a sample of firms that recently underwent an initial public offering to empirically examine the theoretical predictions of Resource Dependence Theory regarding the relationships between different supply chain portfolio characteristics and credit risk.     

Bailout uncertainty in a microfounded general equilibrium model of the financial system

This paper develops a micro-founded general equilibrium model of the financial system composed of ultimate borrowers, ultimate lenders and financial intermediaries. The model is used to investigate the impact of uncertainty about the likelihood of governmental bailouts on leverage, interest rates, the volume of defaults and the real economy. The distinction between risk and uncertainty is implemented by applying the multiple priors framework to beliefs about the probability of bailout.Results of the analysis include: (i) An unanticipated increase in bailout uncertainty raises interest rates, the volume of defaults in both the real and financial sectors and may lead to a total drying up of credit markets. (ii) Lower exante bailout uncertainty is conducive to higher leverage, which in turn raises moral hazard and makes the economy more vulnerable to expost increases in bailout uncertainty. (iii) Bailout uncertainty affects the likelihood of bubbles, the amplitude of booms and busts as well as the banking and the credit spreads. (iv) Higher bailout uncertainty is associated with higher returns’ variability in diversified portfolios and higher systemic risks, (v) Pre-crisis expansionary monetary policy reinforces those effects by inducing higher aggregate leverage levels. (vi) The larger the change in bailout uncertainty and the change in aversion to this uncertainty, the stronger the pre-crisis buildup and the deeper the ensuing crisis.A central policy implication of the analysis is that the vaguest is bailout policy prior to a crisis, the lower is the magnitude of investments destroyed or missed due to errors in evaluating bailout and other intervention policies. On the other hand, the clearer is bailout policy upon the eruption of a crisis, the smaller the contraction of credit and the destruction of investment activity.     

Emerging Market Multinationals: Coopetition for Global Growth

Since the dramatic geopolitical shift toward liberalization in the last century, emerging‐market multinational enterprises (EMNEs) have become major players in global markets and continue to account for an increasing share of global foreign direct investment (FDI) flows. Given this trend, the questions of how and why EMNEs pursue FDI deserve greater attention. This article builds on recent work that uses resource dependence theory (RDT) to explain EMNE internationalization strategies. We propose that EMNEs, while often resource deficient relative to their developed‐market competitors and, therefore, more dependent on others in the external environment, are uniquely positioned to overcome these deficiencies over time through simultaneous cooperation and competition—coopetition—with their global rivals and host‐ and home‐country governments. These propositions contribute to the EMNE internationalization literature by more fully incorporating RDT into current theories of internationalization, highlighting the importance of managing dependencies over time to maximize global growth. © 2015 Wiley Periodicals, Inc.     

创新能力、空间依赖与长三角城市群增长核心演化

城市群经济系统发展过程中,核心城市的增长极化与扩散作用是推动城市群协同发展的关键机制。创新能力、要素集聚与扩散形成的区际空间外部性使得城市群增长核心不断演化,并形成系统协同发展的内在动力。长三角城市群核心城市的极化效应呈现出下降趋势,对其主要影响因素的实证分析结果表明:创新分工过程中创新要素集聚与创新溢出、空间依赖都对城市极化效应具有显著影响。因此,政策导向应从强化城市间创新分工、充分利用创新过程的空间外部性、推进城市群协同发展的制度创新等方面着手。