看片视频

Pollution avoidance and green purchase: The role of moral emotions

Authors: Dapeng Liang, Chenxuan Hou, Myung-Soo Jo, and Emine Sarigollu

Publication: Journal of Cleaner Production, Volume 210, 10 February 2019, Pages 1301-1310

Abstract:

Extrinsic versus Intrinsic Rewards for Contributing Reviews in an Online Platform

Authors: Warut Khern-am-nuai, Karthik Kannan, Hossein Ghasemkhani

Publication: Information Systems Research, Forthcoming

础产蝉迟谤补肠迟:听

Firms have considered various forms of incentives for writing reviews, including the use of extrinsic rewards to attract reviewers. Building on this literature, we study the implications of monetary incentives on online reviews in the context of a natural experiment, where one review platform suddenly began offering monetary incentives for writing reviews. We refer to this as the treated platform. Along with data from Amazon.com and using the difference-in-differences approach, we compare the quantity and quality of reviews before and after rewards were introduced in the treated platform. We find that reviews are significantly more positive but that the quality decreases. Taking advantage of the panel data, we also evaluate the effect of rewards on existing reviewers. We find that their level of participation after monetary incentives decreases but not their quality of participation. Last, even though the platform enjoys an increase in the number of new reviewers, disproportionately more reviews appear to be written for highly rated products.

Read abstract: Information Systems Research

Developing a gamified mobile application to encourage sustainable energy use in the office

础耻迟丑辞谤蝉:听Divinus Oppong-Tawiah,聽Jane Webster, Sandy Staples, Ann-Frances Cameron, Ana Ortiz de Guinea, Tam Y. Hung

Publication: Journal of Business Research, Forthcoming

础产蝉迟谤补肠迟:听

The Decision Rule Approach to Optimization under Uncertainty: Methodology and Applications

础耻迟丑辞谤蝉:听Angelos Georghiou, Daniel Kuhn, Wolfram Wiesemann

Publication:聽Computational Management Science, Forthcoming

础产蝉迟谤补肠迟:听

Robust Dual Dynamic Programming

础耻迟丑辞谤蝉:听Angelos Georghiou, Angelos Tsoukalas, Wolfram Wiesemann

Publication:聽Operations Research, Forthcoming

础产蝉迟谤补肠迟:听

Multi-stage robust optimization problems, where the decision maker can dynamically react to consecutively observed realizations of the uncertain problem parameters, pose formidable theoretical and computational challenges. As a result, the existing solution approaches for this problem class typically determine suboptimal solutions under restrictive assumptions. In this paper, we propose a robust dual dynamic programming (RDDP) scheme for multi-stage robust optimization problems. The RDDP scheme takes advantage of the decomposable nature of these problems by bounding the costs arising in the future stages through lower and upper cost to-go functions. For problems with uncertain technology matrices and/or constraint right-hand sides, our RDDP scheme determines an optimal solution in finite time. If also the objective function and/or the recourse matrices are uncertain, our method converges asymptotically (but deterministically) to an optimal solution. Our RDDP scheme does not require a relatively complete recourse, and it offers deterministic upper and lower bounds throughout the execution of the algorithm. We demonstrate the promising performance of our algorithm in a stylized inventory management problem.

The Effects of Analyst鈥怌ountry Institutions on Biased Research: Evidence from Target Prices

础耻迟丑辞谤蝉:听Mark T. Bradshaw, Alan G. Huang, Hongping Tan

Publication:聽Journal of Accounting Research, Forthcoming

础产蝉迟谤补肠迟:听

Prior research demonstrates that a strong institutional infrastructure in a country moderates self鈥恠erving behavior of market participants. Cross鈥恈ountry economic activities have increased significantly, presenting a research opportunity to examine the relative influence of local versus foreign institutional infrastructure on individual market participants. We utilize variation in analyst鈥恈ountry location relative to covered firm location to examine institutional determinants of optimism in analyst research. Focusing on target prices, where persistent optimism is well documented, we find that analysts domiciled in countries with stronger institutional infrastructures exhibit significantly attenuated target price optimism and more value鈥恟elevant target prices. Our results demonstrate the importance of domestic country鈥恖evel institutional factors in moderating self鈥恠erving behavior of market participants engaged in cross鈥恈ountry activities.

Optimizing Foreclosed Housing Acquisitions in Societal Response to Foreclosures

础耻迟丑辞谤蝉:听Senay Solak, Armagan Bayram, Mehmet Gumus,聽Yueran Zhuo

Publication: Operations Research, Forthcoming

Abstract:

A dramatic increase in U.S. mortgage foreclosures during and after the great economic recession of 2007-2009 had devastating impacts on the society and the economy. In response to such negative impacts, non-profit community development corporations (CDCs) throughout the U.S. utilize various resources, such as grants and lines of credit, in acquiring and redeveloping foreclosed housing units to support neighborhood stabilization and revitalization. Given that the cost of all such acquisitions far exceeds the resources accessible by these non-profit organizations, we identify socially optimal policies for CDCs in dynamically selecting foreclosed properties to target for potential acquisition as they become available over time. We evaluate our analytical results in a numerical study involving a CDC serving a major city in the U.S, and specify social return based thresholds defining selection decisions at different funding levels. We also find that for most foreclosed properties CDCs should not offer more than the asking price, and should typically consider overbidding only when the total available budget is low. Overall, comparisons of optimal policies with historical acquisition data suggest a potential improvement of around 20% in expected total impacts of the acquisitions on nearby property values. Considering a CDC with annual fund availability of $4 million for investment, this corresponds to an estimated additional value of around $280,000 for the society.

Synergistic, Antagonistic, and Asymmetric Media Interactions

础耻迟丑辞谤蝉:听Ceren Kolsarici, and Demetrios Vakratsas

Publication: Journal of Advertising, Vol. 47, No. 3, 2018

Protecting positioning innovations: the emergence of non-traditional trademark registrations

础耻迟丑辞谤蝉:听S. Mishra, Demetrios Vakratsas, and A. V. Krasnikov

Publication: Marketing Letters, Vol. 29, No. 3, September 2018

Angelos Georghiou appointed Associate Editor of Energy Systems

Angelos Georghiou,聽Assistant Professor in Operations Management, was recently聽appointed Associate Editor of Energy Systems - Optimization, Modeling, Simulation, and Economic Aspects.

The journal Energy Systems presents mathematical programming, control, and economic approaches towards energy systems related topics, and is especially relevant in light of the major worldwide challenges confronting humanity in this century.

Winning at a Losing Game? Side-Effects of Perceived Tournament Promotion Incentives in Audit Firms

础耻迟丑辞谤蝉:听Jorien Pruijssers, Pursey Pmar Heugens and Hans J. Van Oosterhout

Publication: Journal of Business Ethics, Forthcoming

Abstract:

A Smart-City Scope of Operations Management

础耻迟丑辞谤蝉:听Wei Qi and Zuo-Jun Max Shen

Publication: Production and Operations Management, Forthcoming

Abstract:

We are entering an era of great expectations towards our cities. The vision of 鈥渟mart city鈥� has been pursued worldwide to transform urban habitats into superior efficiency, quality and sustainability. This phenomenon prompts us to ponder what role the scholars in operations management (OM) can assume. In this essay, we express our initial thoughts on expanding OM to the smart-city scope. We review smart-city initiatives of governments, industry, national laboratories and academia. We argue that the smart-city movement will transition from the tech-oriented stage to the decision-oriented stage. Hence, a smart city can be perceived as a system scope within which planning and operational decisions are orchestrated at the urban scale, reflective of multidimensional needs, and adaptive to massive data and innovation. The benefits of studying smart-city OM are manifold and significant: contributing to deeper understanding of smart cities by providing advanced analytical frameworks, pushing OM knowledge boundaries (such as data-driven decision making), and empowering the OM community to deliver much broader impacts than before. We discuss several research opportunities to embody these thoughts, in the interconnected contexts of smart buildings, smart grid, smart mobility and new retail. These opportunities arise from the increasing integration of systems and business models at the urban scale.

Alain Pinsonneault Awarded 2018 SSHRC Insight Grant

Congratulations to聽Alain Pinsonneault,聽Professor in Information Systems, awarded the聽2018 SSHRC Insight Grant聽鈥淭he impact of explorative and exploitive use of information technology on individual performance鈥�.

Jui Ramaprasad and Alain Pinsonneault awarded 2018 SSHRC Insight Grant

Congratulations to聽Jui Ramaprasad,聽Associate Professor of Information Systems, and Alain Pinsonneault, Professor of Information Systems, awarded the 2018 SSHRC Insight Grant聽鈥淓xamining Value Creation in the Digital Economy: A Platform Engagement Perspective鈥�.