A Note on the Use of Survey Research Firms to Enable Empirical Data Collection

This forward thinking article examines the risks and rewards of using survey research firms to enable empirical data collection, and issues a cautionary note about its application. An exposition and discussion of this form of data collection in supply chain management is relevant today, due to the “survey‐fatigue” among the population of business professionals from whom we seek a response. While this approach has some history in other disciplines, it is still relatively new among supply chain management researchers. To help supply chain management scholars assess the appropriateness of this type of data collection method, this forward thinking article provides invaluable guidance as derived from the authors' recent experiences with the approach. As such, we share our observations and lessons learned. The conclusion is that the use of survey research firms for empirical data collection can be a viable, alternative approach to self‐administered surveys. However, care should be taken in its application.     

THE EFFECT OF TRADING FUTURES ON SHORT SALE CONSTRAINTS

It is commonly believed that the trading of futures on a commodity enables the market to overcome short selling constraints on the spot commodity itself. This belief is embedded in the notion that trading strategies involving futures contracts enable traders to replicate the payoffs as if they were short the spot commodity. The purpose of this paper is to investigate this common belief in a general arbitrage‐free semimartingale financial model with trading in futures and a short selling prohibition on the spot commodity. We show via various examples that, in general, this common belief is incorrect. Furthermore, we provide a set of sufficient conditions, albeit very restrictive, under which the common belief is true.     

数字脉冲应答机的时延补偿方法

针对模拟体制脉冲应答机中声表面波延迟线的设计缺陷,运用基于FPGA的数字存 储转发技术,提出一种数字化高精度时延补偿方法,大大提高了脉冲应答机的时延转发精度 。 该脉冲应答机具有延迟时间易修改、转发精度高等特点,对实际工程应用具有借鉴价值。     

Effects of State-Dependent Forward Guidance,Large-Scale Asset Purchases,and Fiscal Stimulus in a Low-Interest-Rate Environment

We study the incidence and severity of periods with a binding effective lower bound on nominal interest rates and the efficacy of three types of state-dependent policies—forward guidance about the path of future interest rates, large-scale asset purchases, and spending-based fiscal stimulus—in mitigating the detrimental consequences of the lower bound for macro-economic stability. Based on the ECB's New Area-Wide Model of the euro area, our findings suggest that, if left unaddressed, the lower bound can cause substantial macro-economic distortions. In the near term, forward guidance, if fully credible, is most powerful and can largely undo these distortions. A combination of imperfectly credible forward guidance, asset purchases, and fiscal stimulus is almost equally effective, especially when asset purchases enhance the credibility of the forward-guidance policy via a signaling effect. In the long run, with an equilibrium real rate as low as zero, a combination of all three policies is needed to materially reduce the distortions.     

Blockchain technology for creative industries: Current state and research opportunities

Blockchain based NFTs (non-fungible tokens) and smart contracts provide creative industries with exciting opportunities. While they have created a great deal of frenzy in markets, in the frenzy there emerges real value for the industries. Traditionally, creators in the creative industries often need to rely on powerful intermediaries to distribute and profit from their creations. NFT and smart contracts provide creators much closer access to content consumers/buyers. Along this line of thought, this article provides marketing researchers with an overview of the unfolding adoption of NFTs and smart contracts in creative industries. We start by pointing out the market frictions and consequent “transaction costs” that creators face traditionally when distributing their creative content to consumers/buyers. Then, we present the basic ideas of smart contracts and NFTs, discussing how they can transform the market by reducing these transaction costs. Meanwhile, we point out limitations and challenges that creators, buyers, and marketplaces might face in the adoption of NFTs and smart contracts. Finally, we raise an abundance of unexplored research questions interesting to both marketing researchers and practitioners.     

英国远期约定政府购买制度对中国的启示

探索实施创新产品与服务远期约定政府购买制度是政府推动科技创新的重要举措。在分析远期约定政府购买制度的定义、实施远期约定政府购买制度的必要性和重要意义的基础上，对英国“远期约定采购”政策进行探索借鉴。研究发现，研发政策对市场创新推动乏力、市场需求对研发创新拉动失灵、传统公共采购未能有效捕捉创新点是英国远期约定政府购买政策出台的背景。并对英国远期约定采购的3个基础条件和4个基本流程进行梳理和分析。同时，对中国部分省市开展远期约定政府购买制度的经验及存在问题进行深入分析。最后，针对中国远期约定政府购买制度的大范围实施提出方向性建议与展望：研究制定符合GPA（政府采购协议）国际规则的远期约定政府购买制度；加大对中小企业产品的采购；建立创新产品政府采购使用信息反馈机制和数据平台。     

Talking Over Time - Dynamic Central Bank Communication

This paper studies the optimal dynamic communication strategy of central banks using a Bayesian persuasion game framework. In a dynamic environment, financial market participants and the general public have misaligned interests because the present and future have different relevance in their optimization problems, leading to a novel trade-off for the monetary authority. Compared to the static benchmark, I show that the central bank (CB's) optimal dynamic communication policy should put a higher weight on talking about the present state than the future. In addition, the CB should strategically send more noisy signals than in the static benchmark.