Breaking the Cycle: How the News and Markets Created a Negative Feedback Loop in COVID-19
New research from CBS Professor Harry Mamaysky reveals how negativity in the news and markets can escalate a financial crisis.
New research from CBS Professor Harry Mamaysky reveals how negativity in the news and markets can escalate a financial crisis.
Adapted from “Global Value Chains in Developing Countries: A Relational Perspective from Coffee and Garments,” by Laura Boudreau of Columbia Business School, Julia Cajal Grossi of the Geneva Graduate Institute, and Rocco Macchiavello of the London School of Economics.
Adapted from “Online Advertising as Passive Search,” by Raluca M. Ursu of New York University Stern School of Business, Andrey Simonov of Columbia Business School, and Eunkyung An of New York University Stern School of Business.
This paper from Columbia Business School, “Meaning of Manual Labor Impedes Consumer Adoption of Autonomous Products,” explores marketing solutions to some consumers’ resistance towards autonomous products. The study was co-authored by Emanuel de Bellis of the University of St. Gallen, Gita Johar of Columbia Business School, and Nicola Poletti of Cada.
Co-authored by John B. Donaldson of Columbia Business School, “The Macroeconomics of Stakeholder Equilibria,” proposes a model for a purely private, mutually beneficial financial agreement between worker and firm that keeps decision-making in the hands of stockholders while improving the employment contract for employees.
At Columbia Business School, our faculty members are at the forefront of research in their respective fields, offering innovative ideas that directly impact the practice of business today. A quick glance at our publication on faculty research, CBS Insights, will give you a sense of the breadth and immediacy of the insight our professors provide.
As a student at the School, this will greatly enrich your education. In Columbia classrooms, you are at the cutting-edge of industry, studying the practices that others will later adopt and teach. As any business leader will tell you, in a competitive environment, being first puts you at a distinct advantage over your peers. Learn economic development from Ray Fisman, the Lambert Family Professor of Social Enterprise and a rising star in the field, or real estate from Chris Mayer, the Paul Milstein Professor of Real Estate, a renowned expert and frequent commentator on complex housing issues. This way, when you complete your degree, you'll be set up to succeed.
Columbia Business School in conjunction with the Office of the Dean provides its faculty, PhD students, and other research staff with resources and cutting edge tools and technology to help push the boundaries of business research.
Specifically, our goal is to seamlessly help faculty set up and execute their research programs. This includes, but is not limited to:
All these activities help to facilitate and streamline faculty research, and that of the doctoral students working with them.
We consider a multi-period single product pricing problem with an unknown demand curve. The seller's objective is to adjust prices in each period so as to maximize cumulative expected revenues over a given finite time horizon; in so doing, the seller needs to resolve the tension between learning the unknown demand curve, and earning revenues by solving the dynamic optimization problem.
We consider a multi-period single product pricing problem with an unknown demand curve. The seller's objective is to adjust prices in each period so as to maximize cumulative expected revenues over a given finite time horizon; in so doing, the seller needs to resolve the tension between learning the unknown demand curve, and earning revenues by solving the dynamic optimization problem.
Contingent capital (CC), which intends to internalize the costs of too-big-to-fail in the capital structure of large banks, has been under intense debate by policy makers and academics. We show that CC with a market trigger, in which direct stake-holders are unable to choose optimal conversion policies, does not lead to a unique competitive equilibrium, unless value transfer at conversion is not expected ex-ante. The "no value transfer" restriction precludes penalizing bank managers for taking excessive risk.
Ad Exchanges are emerging Internet markets where advertisers may purchase display ad placements, in real-time and based on specific viewer information, directly from publishers via a simple auction mechanism. Advertisers join these markets with a pre-specified budget and participate in multiple second-price auctions over the length of a campaign. This paper studies the competitive landscape that arises in Ad Exchanges and the implications for publishers' decisions.
In Slovenia during the period 2000-2010, the number of years of potential life lost before the age of 70 years per 100,000 population under 70 years of age declined 25 %. The aim of this study was to test the hypothesis that pharmaceutical innovation played a key role in reducing premature mortality from all diseases in Slovenia, and to examine the effects of pharmaceutical innovation on the age-standardized number of cancer deaths and on hospitalization from all diseases.
The longevity of multiple myeloma patients increased sharply since the late 1990s. This increase coincided with the introduction of several important innovations in chemotherapy for myeloma. In this study, we aim to quantify the impact of recent chemotherapy innovation on the longevity of myeloma patients using both time-series US data and longitudinal data on 38 countries.
Many authors have expressed the view that a substantial portion of recent gains in longevity and health is due to biomedical research and innovation. This article describes the methodologies and findings of a number of studies based on observational data that have sought to measure the impact of biomedical innovation on the longevity and health of Americans and other populations during recent decades.
Although skilled return migrants are structurally positioned as cross-border brokers to conduct knowledge transfer from abroad to their home countries, they do not systematically do so. Using an original dataset of 4,183 former J1 Visa holders—all of whom worked in the U.S.—from 81 different countries, I argue that returnees' knowledge transfer success depends on their embeddedness in their home and host country workplaces and the evaluation of the knowledge recipients in their home country organizations.
We estimate a New-Keynesian macro model accommodating regime-switching behavior in monetary policy and in macro shocks. Key to our estimation strategy is the use of survey-based expectations for inflation and output. We identify accommodating monetary policy before 1980, with activist monetary policy prevailing most but not 100% of the time thereafter. Systematic monetary policy switched to the activist regime in the 2000-2005 period through an aggressive lowering of interest rates.
Are the rich more unethical than the poor? To answer this question, the current research introduces a key conceptual distinction between selfish and unethical behavior. Based on this distinction, the current article offers 2 novel findings that illuminate the relationship between social class and unethical behavior. First, the effects of social class on unethical behavior are not invariant; rather, the effects of social class are moderated by whether unethical behavior benefits the self or others.
Previous investigators have argued that one of the two most important contributors to improved human survival is the treatment of cardiovascular disease. Among Swiss inhabitants age 65 and over, 90% of the 1994-2010 decline in the overall death rate was due to the decline in the rate of deaths from diseases of the circulatory system. Little if any of the decline in cardiovascular mortality is likely to have been due to changes in behavioral risk factors, especially tobacco use and obesity.
The paper investigates the long-run consequences of multichannel shopping on customers' spending. Using data from a major US catalog company which introduced an online channel, our results validate previous findings that multichannel customers spend more than mono-channel customers in the short run. However, the difference in spending dissipates over time with multichannel customers reverting to their regular consumption pattern in 3 years.
The paper investigates the long-run consequences of multichannel shopping on customers' spending. Using data from a major US catalog company which introduced an online channel, our results validate previous findings that multichannel customers spend more than mono-channel customers in the short run. However, the difference in spending dissipates over time with multichannel customers reverting to their regular consumption pattern in 3 years.
The current research shows that having no power can be better than having a little power. Negotiators prefer having some power (weak negotiation alternatives) to having no power (no alternatives). We challenge this belief that having any alternative is beneficial by demonstrating that weak alternatives create low anchors that reduce the value of first offers. In contrast, having no alternatives is liberating because there is no anchor to weigh down first offers.
The current research explores whether the foreign professional experiences of influential executives predict firm-level creative output. We introduce a new theoretical model, the Foreign Experience Model of Creative Innovations, to explain how three dimensions of executives' foreign work experiences — breadth, depth, and cultural distance — predict an organization's creative innovations, which we define as the extent to which final, implemented products or services are novel and useful from the standpoint of external audiences.
Six years after the passage of the 2008 Troubled Asset Relief Program, commonly known as TARP, it remains hard to measure the total social costs and benefits of the assistance to banks provided under TARP programs. TARP was not a single approach to assisting weak banks but rather a variety of changing solutions to a set of evolving problems. TARP's passage was associated with significant improvements in financial markets and the health of financial intermediaries, as well as an increase in the supply of lending by recipients.
We develop a model to understand and predict customers’ observed multichannel behavior in a customer support setting.
Organizational techniques are labels, such as Reengineering, denoting linguistic prescriptions, which organizations can implement to transform organizational inputs into organizational outputs. The theory of fashions in organizational techniques tends to explain the causes of the relative transience of certain organization techniques, whereas the theory of institutions in these techniques tends to explain the causes of other techniques' relative persistence.
Past research indicates that foreign experience helps problem solving because the experience of adapting ones lifestyle imparts cognitive flexibility. We propose that an independent process involves studying cultural traditions and systems, which imparts foreign concepts that enable unconventional solutions. If so, advantages on unconventionality problems should be associated with experiences studying of another culture, such as typically occurs in study-abroad programs.
We estimate the elasticity of exports to credit using matched customs and firm-level bank credit data from Peru. To account for non-credit determinants of exports, we compare changes in exports of the same product and to the same destination byfirms borrowing from banks differentially affected by capital-flow reversals during the 2008 financial crisis. We find that credit shocks affect the intensive margin of exports, but have no significant impact on entry or exit of firms to new product and destination markets.
We develop a dynamic contingent-claim framework to model S. Myers's idea that a firm is a collection of growth options and assets in place. The firm's composition between assets in place and growth options evolves endogenously with its investment opportunity set and its financing of growth options, as well as its dynamic leverage and default decisions. The firm trades off tax benefits with the potential financial distress and endogenous debt-overhang costs over its life cycle.
Facebook is rapidly gaining recognition as a powerful research tool for the social sciences. It constitutes a large and diverse pool of participants, who can be selectively recruited for both online and offline studies. Additionally, it facilitates data collection by storing detailed records of its users' demographic profiles, social interactions, and behaviors. With participants' consent, these data can be recorded retrospectively in a convenient, accurate, and inexpensive way.
This essay analyzes some problems that accounting standard setters confront in erecting barriers to managers bent on boosting their firms' financial reports through financial engineering (FE) activities. It also poses some unsolved research questions regarding interactions between preparers and standard setters. It starts by discussing the history of lease accounting to illustrate the institutional disadvantage of standard setters relative to preparers in their speeds of response.
We comment on Gilovich and colleagues' program of research on happiness resulting from experiential versus material purchases, and critique these authors' interpretation that people derive more happiness from experiences than from material possessions. Unlike goods, experiences cannot be purchased, and possessions versus experiences do not seem to form the endpoints of the same continuum.
Functional accounts of hierarchy propose that hierarchy increases group coordination and reduces conflict. In contrast, dysfunctional accounts claim that hierarchy impairs performance by preventing low-ranking team members from voicing their potentially valuable perspectives and insights. The current research presents evidence for both the functional and dysfunctional accounts of hierarchy within the same dataset. Specifically, we offer empirical evidence that hierarchical cultural values affect the outcomes of teams in high-stakes environments through group processes.
This symposium will introduce and discuss how scholars can improve upon the Null Hypothesis Significance Tests (NHSTs), which are currently constraining the production of knowledge in management science. The extensive use of NHST in quantitative research has led to the accumulation of statistically significant results that are both too small to be practically relevant and so small that they are unlikely to replicate. In a field that aspires to provide useful advice to managers, we need to focus on practically important effects that are robust across a wide variety of settings.
This work examines the process of admission to a hospital’s intensive care unit (ICU). ICUs currently lack systematic admission criteria, largely because the impact of ICU admission on patient outcomes has not been well quantified. This makes evaluating the performance of candidate admission strategies difficult. Using a large patient-level data set of more than 190,000 hospitalizations across 15 hospitals, we first quantify the cost of denied ICU admission for a number of patient outcomes.
Intergroup researchers have the opportunity to access to a wide variety of methods to help deepen theoretical insights about intergroup relations. In this paper, we focus on neuroendocrine measures, as these physiological measures offer some advantages over traditional measures used in intergroup research, are noninvasive, and are relatively easy to incorporate into existing intergroup paradigms. We begin by discussing the major neuroendocrine systems in the body and their measurable biological products, emphasizing systems that have conceptual relevance to intergroup relations.
We consider the question of how should a firm optimally set a sequence of prices in order to maximize its long-term average revenue given a continuous flow of strategic customers. In particular, customers arrive over time, are strategic in timing their purchases and are heterogeneous along two dimensions: their valuation for the firm's product and their willingness to wait before purchasing or leaving. The customers' patience and valuation may be correlated in an arbitrary fashion.
We combine unique administrative and survey data to study the match between firms and managers. The data include manager characteristics, firm characteristics, detailed measures of managerial practices, and outcomes for the firm and the manager. A parsimonious model of matching and incentives generates implications that we test with our data. We use the model to illustrate how risk aversion and talent determine how firms select and motivate managers.
Among both laypersons and researchers, extensive use of first-person singular pronouns (i.e., I-talk) is considered a face-valid linguistic marker of narcissism. However, the assumed relation between narcissism and I-talk has yet to be subjected to a strong empirical test.
We consider a non-stationary variant of a sequential stochastic optimization problem, where the underlying cost functions may change along the horizon. We propose a measure, termed variation budget, that controls the extent of said change, and study how restrictions on this budget impact achievable performance. We identify sharp conditions under which it is possible to achieve long- run-average optimality and more refined performance measures such as rate optimality that fully characterize the complexity of such problems.
We consider a non-stationary variant of a sequential stochastic optimization problem, where the underlying cost functions may change along the horizon. We propose a measure, termed variation budget, that controls the extent of said change, and study how restrictions on this budget impact achievable performance. We identify sharp conditions under which it is possible to achieve long- run-average optimality and more refined performance measures such as rate optimality that fully characterize the complexity of such problems.
Eight studies found a robust negative relationship between the experience of power and the experience of loneliness. Dispositional power and loneliness were negatively correlated (Study 1). Experimental inductions established causality: we manipulated high versus low power through autobiographical essays, assignment to positions, or control over resources, and found that each manipulation showed that high versus low power decreased loneliness (Studies 2a–2c).
We examine the relationship between the organization of a multi-divisional firm and its ability to adapt production decisions to changes in the environment. We show that even if lower-level managers have superior information about local conditions, and incentive conflicts are negligible, a centralized organization can be better at adapting to local information than a decentralized one. As a result, and in contrast to what is commonly argued, an increase in product market competition that makes adaptation more important can favor centralization rather than decentralization.
In this paper, we discuss the role of overconfidence as an explanation for these patterns. Overconfidence means having mistaken valuations and believing in them too strongly. It might seem that actors in liquid financial markets should not be very susceptible to overconfidence, because return outcomes are measurable, providing extensive feedback. However, overconfidence has been documented among experts and professionals, including those in the finance profession.
We review limitations of the traditional paradigm for cultural research and propose an alternative framework, polyculturalism. Polyculturalism assumes that individuals' relationships to cultures are not categorical but rather are partial and plural; it also assumes that cultural traditions are not independent, sui generis lineages but rather are interacting systems. Individuals take influences from multiple cultures and thereby become conduits through which cultures can affect each other.
This review synthesizes research on power and morality. Although power is typically viewed as undermining the roots of moral behavior, this paper proposes power can either morally corrupt or morally elevate individuals depending on two crucial factors. First, power can trigger behavioral disinhibition. As a consequence, power fosters corruption by disinhibiting people's immoral desires, but can also encourage ethical behavior by amplifying moral impulses. Second, power leads people to focus more on their self, relative to others.
This article considers the social and psychological functions that norm-based thinking and behavior provide for the individual and the collectivity. We differentiate between two types of reference groups that provide norms: peer groups versus aspirational groups. We integrate functionalist accounts by distinguishing the functions served by the norms of different reference groups, different degrees of norm moralization, and different directions of responses to norm activation.
Of all publications on success in sales appearing in this century and many decades previously, The Challenger Sale has perhaps generated more discussion and controversy among sales leaders, strategic account program directors and strategic account managers than any other. But does this widely read and discussed volume actually represent the breakthrough that Neil Rackham suggests, or is it just an interesting examination of sales that serves mainly as an infomercial for the Corporate Executive Board (sponsor of the research) and its affiliates?
We introduce a regression-based nested Monte Carlo simulation method for the estimation of financial risk. An outer simulation level is used to generate financial risk factors and an inner simulation level is used to price securities and compute portfolio losses given risk factor outcomes. The mean squared error (MSE) of standard nested simulation converges at the rate, where measures computational effort. The proposed regression method combines information from different risk factor realizations to provide a better estimate of the portfolio loss function.
We introduce a regression-based nested Monte Carlo simulation method for the estimation of financial risk. An outer simulation level is used to generate financial risk factors and an inner simulation level is used to price securities and compute portfolio losses given risk factor outcomes. The mean squared error (MSE) of standard nested simulation converges at the rate, where measures computational effort. The proposed regression method combines information from different risk factor realizations to provide a better estimate of the portfolio loss function.
We propose that an individual's regulatory focus moderates the significant role social network density — the degree of interconnectedness among a person's social contacts — plays in shaping life satisfaction. Evidence from Study 1 indicates that participants with high prevention effectiveness reported higher life satisfaction when they were embedded in a high-density network, whereas participants with low promotion effectiveness reported lower life satisfaction when they were embedded in a low-density network.
We propose that an individual's regulatory focus moderates the significant role social network density — the degree of interconnectedness among a person's social contacts — plays in shaping life satisfaction. Evidence from Study 1 indicates that participants with high prevention effectiveness reported higher life satisfaction when they were embedded in a high-density network, whereas participants with low promotion effectiveness reported lower life satisfaction when they were embedded in a low-density network.
Selecting more effective teachers among job applicants during the hiring process could be a highly cost-effective means of improving educational quality, but there is little research that links information gathered during the hiring process to subsequent teacher performance. We study the relationship among applicant characteristics, hiring outcomes, and teacher performance in the Washington DC Public Schools (DCPS).
We predicted that experiencing emotions that reflect uncertainty about the world (e.g., worry, surprise, fear, hope), compared to certain emotions (e.g., anger, happiness, disgust, contentment), would activate the need to imbue the world with order and structure across a wide range of compensatory measures. To test this hypothesis, three experiments orthogonally manipulated the uncertainty and the valence of emotions. Experiencing uncertain emotions increased defense of government (Experiment 1) and led people to embrace conspiracies and the paranormal (Experiment 2).
We report the results of a survey conducted in November 2014 in which 29 quantitative marketing scholars from around the world reflected on the present and future of their field. The survey focused on substantive areas, methods and tools, practical and managerial relevance, doctoral training, and promotion and tenure. The results of the survey revealed several general insights on the challenges and opportunities faced by the field of quantitative marketing research.
We report the results of a survey conducted in November 2014 in which 29 quantitative marketing scholars from around the world reflected on the present and future of their field. The survey focused on substantive areas, methods and tools, practical and managerial relevance, doctoral training, and promotion and tenure. The results of the survey revealed several general insights on the challenges and opportunities faced by the field of quantitative marketing research.
We report the results of a survey conducted in November 2014 in which 29 quantitative marketing scholars from around the world reflected on the present and future of their field. The survey focused on substantive areas, methods and tools, practical and managerial relevance, doctoral training, and promotion and tenure. The results of the survey revealed several general insights on the challenges and opportunities faced by the field of quantitative marketing research.