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.
The article offers the authors' views on expatriate management programs and the benefits from executives interacting with the people and institutions of the host country. The idea that international experience or interaction between foreign managers and local people will help managers become more creative, entrepreneurial, and successful is discussed. The concept of integrative complexity in bi-cultural managers which enhances job performance is mentioned.
The Kidney Case is multi-person exercise that involves the allocation of a single kidney. Students read profiles of eight candidates for the kidney and make a first allocation decision. Each candidate was designed to be high on some allocation principles but low or unknown on others (e.g., best, match, time in cue, age, personal responsibility for disease, future benefits to society, etc.). Then, students are put into groups and assigned to advocate for one of the candidates. Each group will prepare and give a 3-minute presentation on why their candidate should receive the kidney.
Emissions abatement alone cannot address the consequences of global warming for weather disasters. We model how society adapts to manage disaster risks to capital stock. Optimal adaptation — a mix of firm-level efforts and public spending — varies as society learns about the adverse consequences of global warming for disaster arrivals. Taxes on capital are needed alongside those on carbon to achieve the first best.
What are the sources of the returns to education? We study the allocation of higher education graduates from public institutions in Ohio across firms. We present three results. First, we confirm findings in the earlier literature of large pay differences across degrees. Second, we show that up to one quarter of pay premiums for higher degrees are explained by between-firm pay differences. Third, higher education degrees are associated with greater representation at the best-paying firms.
This article focuses on the role of threats in negotiations. Broadly speaking, a threat is a proposition that issues demands and warns of the costs of noncompliance. Even if neither party resorts to them, potential threats shadow most negotiations. Researchers have found that people actually evaluate their counterparts more favorably when they combine promises with threats rather than extend promises alone. Whereas promises encourage exploitation, the threat of punishment motivates cooperation.
We have titled this paper with an ode to a compilation album by a band that was founded in Palo Alto and developed a counter-culture. Though the title espouses a new state of mind, it is investment, not consumption driven, as this is 2017 and not 1965.
The authors examine how consumers respond to pseudo-free offers--offers that are presented to consumers as free but that require consumers to make a nonmonetary payment (such as completing a survey or providing personal information) in order to receive the "free" good or service. Across six studies, the authors find that consumers are generally just as likely to accept pseudo-free offers (with nonmonetary costs) as comparable truly free offers (with no costs), as long as the costs of the pseudo-free offers are below some threshold.
We provide a framework for identifying accounting numbers that indicate risk and expected return. Under specified accounting conditions for measuring earnings and book value, book-to-price (B/P) indicates expected returns, providing justification for B/P in asset pricing models. However, the framework also points to earnings-to-price (E/P) as a risk characteristic. Indeed, E/P, rather than B/P, is the relevant characteristic when there is no expected earnings growth, but the weight shifts to B/P with growth.
We extend latent Dirichlet allocation by introducing a topic model, hierarchically dual latent Dirichlet allocation (HDLDA), for contexts in which one type of document (e.g., search queries) are semantically related to another type of document (e.g., search results). In the context of online search engines, HDLDA identifies not only topics in short search queries and web pages, but also how the topics in search queries relate to the topics in the corresponding top search results.
Geographic price discrimination is generally considered beneficial to firm profitability. Firms can extract higher rents by varying prices across markets to match consumers' preferences. This paper empirically demonstrates, however, that a firm may instead prefer a national pricing policy that fixes prices across geographic markets, foregoing the opportunity to customize prices. Under appropriate conditions, a national pricing policy helps avoid intense local competition due to targeted prices.
The most effective behavioral policies are often also the most contentious. Psychologically informed interventions that promote non-deliberative behaviors ("nudges") are often more effective than "traditional" policies (like informational and educational campaigns) that target more deliberative processes. Yet, precisely because of their deliberative nature, people are often said to prefer the latter over the former.
In incentive-aligned choice experiments, each decision is realized with some probability, Prob. In three eye-tracking experiments, we study the impact of varying Prob from 0 (as in purely hypothetical choices) to 1 (as in real-life choices) on attention, information processing, and choice. Consistent with the bounded rationality literature, we find that as Prob increases from 0 to 1, consumers process the choice-relevant information more carefully and more comprehensively.
Marketing managers are responsible for understanding and predicting customer purchasing activity. This task is complicated by a lack of knowledge of all of the calendar time events that influence purchase timing. Yet, isolating calendar time variability from the natural ebb and flow of purchasing is important for accurately assessing the influence of calendar time shocks to the spending process, and for uncovering the customer-level purchasing patterns that robustly predict future spending.
There is evidence that altering stress mindset — the belief that stress is enhancing vs. debilitating — can change cognitive, affective and physiological responses to stress. However, individual differences in responsiveness to stress mindset manipulations have not been explored. Given the previously established role of catecholamines in both placebo effects and stress, we hypothesized that genetic variation in catechol-O-methyltransferase (COMT), an enzyme that metabolizes catecholamines, would moderate responses to an intervention intended to alter participants' mindsets about stress.
On search keywords with trademarked terms, the brand owner ("focal brand") and other relevant firms compete for consumers. For the focal brand, paid clicks have a direct substitute in the organic links below the paid ad(s). The proximity of this substitute depends on whether competing firms are bidding aggressively to siphon off traffic. We study the returns to focal brands and competitors using large-scale experiments on Bing with data from thousands of brands.
Our theory explains how multi-product corporations that engage in customer-centric diversification can create and sustain corporate advantage. First, we invoke the concept of customer-centric assets to explain their role as the cornerstone of corporate advantage in customer-centric diversification. Second, our explanation of the corporate advantage in customer-centric diversification goes beyond the hypothetical "consumer synergies" argument to also include the "market-power advantage" argument.
We examine the cost-effectiveness, from the shareholders' perspective, of the accounting standards issued by the FASB during 1973-2009. We evaluate (i) the stock market reactions of firms affected by the standards surrounding events that changed the standard's probability of issuance; and (ii) whether the market reactions are related, in the cross-section, to agency problems, information asymmetry, proprietary costs, contracting costs, and changes in estimation risk.
We investigate the implementation of a 2014 Government of India mandate that requires companies to at least spend 2% of their profits on corporate social responsibility (CSR) activities. Firms that voluntarily engaged in CSR before the mandate reduce their spending significantly down to the suggested 2% level. Firms that did not actively engage in CSR before the mandate increase their spending marginally. CSR spending post mandate is highly sensitive to negative shocks to firm profits, but not to positive profit shocks.
The current research offers a new theoretical perspective on the relationship between power and persuasion. An agentic-communal model of power is presented that proposes power affects both the type of messages generated by communicators and the types of messages that persuade audiences. Compared to low-power and neutral states, high-power states produce a greater emphasis on information that conveys competence. As a consequence, high-power communicators generate messages with greater competence information and high-power audiences are persuaded more by competence information.
Inequality and its effects on societies have received increasing prominence in debates among economists and social scientists and in policy circles over the past thirty years. There are many, often interacting inequalities and different forms of inequality. Wide income and wealth inequality has harmful consequences for the economic welfare of societies, social cohesion, and other factors that intrinsically and instrumentally diminish social progress.
A recent development in online advertising has been the ability of advertisers to have their ads displayed exclusively on (a part of) a web page. We study this phenomenon in the context of both sponsored search advertising and display advertising. Ads are sold through auctions, and when exclusivity is allowed, the seller accepts two bids from advertisers, where one bid is for the standard display format in which multiple advertisers are displayed, and the other bid is for being shown exclusively (therefore they are called two-dimensional, or 2D, auctions).
The authors propose a quantitative approach for describing entertainment products, in a way that allows for improving the predictive performance of consumer choice models for these products. Their approach is based on the media psychology literature, which suggests that people’s consumption of entertainment products is influenced by the psychological themes featured in these products. They classify psychological themes on the basis of the “character strengths” taxonomy from the positive psychology literature (Peterson and Seligman 2004).
We document a large decrease in earnings inequality in Brazil between 1996 and 2012. Using administrative linked employer-employee data, we fit high-dimensional worker and firm fixed effects models to understand the sources of this decrease. Firm effects account for 40 percent of the total decrease and worker effects for 29 percent. Changes in observable worker and firm characteristics contributed little to these trends. Instead, the decrease is primarily due to a compression of returns to these characteristics, particularly a declining firm productivity pay premium.
Value stocks earn higher returns than growth stocks on average, but a “value” position can turn against the investor. Fundamental analysis can explain this so-called value trap: The investor may be buying earnings growth that is risky. Both the earnings-to-price ratio (E/P) and the book-to-price ratio (B/P) come into play. E/P indicates expected earnings growth, but price in that ratio also discounts for the risk to that growth; B/P indicates that risk. A striking finding emerges: For a given E/P, a high B/P (“value”) indicates higher expected earnings growth--but growth that is risky.
I study the benefits to entrepreneurial migration, focused on firms moving to Silicon Valley. Using a machine learning estimator and panel data, I find moving to Silicon Valley leads to higher startup performance on equity outcomes, financing, patenting, products, and revenue. These results are robust to a stringent coefficient stability test, and show no evidence of pre-trends. The benefits are partially driven by knowledge spillovers, and sensitive to capital market conditions during migration. Despite the benefits to migration, most startups do not move.
This pilot study estimates the effects of family structure on age of diagnosis, with the goal of identifying factors that may accelerate or delay diagnosis. We conducted an online survey with 477 parents of children with autism. In addition, we carried out novel, follow-up surveys of 196 "friends and family," who were referred by parents. Family structure and frequency of interactions with family members have significant effects on age of diagnosis (p < 0.05).
Prior research has found inconsistent effects of diversity on group performance. The present research identifies hormonal factors as a critical moderator of the diversity-performance connection. Integrating the diversity, status, and hormone literatures, we predicted that groups collectively low in testosterone, which orients individuals less toward status competitions and more toward cooperation, would excel with greater group diversity. In contrast, groups collectively high in testosterone, which is associated with a heightened status drive, would be derailed by diversity.
Recent evidence suggests that Americans' beliefs about upward mobility are overly optimistic. Davidai & Gilovich (2015a), Kraus & Tan (2015), and Kraus (2015) all found that people overestimate the likelihood that a person might rise up the economic ladder, and underestimate the likelihood that they might fail to do so. However, using a different methodology, Chambers, Swan and Heesacker (2015) reported that Americans' beliefs about mobility are much more pessimistic.
Income inequality is emerging as the socioeconomic topic of our era. Yet there is no clear conclusion as to how income inequality affects the most comprehensive human outcome measure, subjective well-being (SWB). This study provides an explanation for the relationship between income inequality and SWB, by delving into its mechanisms, including egalitarian preferences, perceived fairness, social comparison concerns, as well as perceived social mobility.
This paper assesses cross-country variation in life-cycle human capital accumulation, using new evidence from US immigrants. The returns to experience accumulated in an immigrant's birth country before migrating are positively correlated with birth-country GDP per capita. To understand this fact, we build a model of life-cycle human capital accumulation that features three potential theories: differential human capital accumulation, differential selection, and differential skill loss.
We study an aggregated marketplace where potential buyers arrive and submit requests-for- quotes (RFQs). There are n independent suppliers modelled as M/GI/1 queues that compete for these requests. Each supplier submits a bid that comprises of a fixed price and a dynamic target leadtime, and the cheapest supplier wins the order as long as the quote meets the buyer’s willingness to pay.
I find that shadow bank money creation significantly expands during monetary tightening. This "shadow money channel" offsets the reductions in commercial bank deposits and dampens the impact of monetary policy. Using a structural model of bank competition, I show that heterogeneous depositor clientele quantitatively explains the difference in monetary transmission between commercial and shadow banks. Facing more yield-sensitive clientele, shadow banks pass through more rate hikes to depositors, thereby attract more deposits when the Fed raises rates.
People quickly form impressions about moral character; for example, if people learn that someone cheated, they form a negative impression about that person's character and expect that person to cheat in the future. Four studies show that the formation of such moral character impressions depends on the degree of valence homogeneity in the target's context. We argue that this is the case because the degree of homogeneity in the context (the evaluative ecology) informs perceivers about the reliability of signals.
Moral Utility Theory provides an integrative framework for understanding the motivational basis of ethical decision making by modeling it as a process of subjective expected utility (SEU) maximization. The SEUs of ethical and unethical behavioral options are proposed to be assessed intuitively during goal pursuit, with unethical conduct emerging when the expected benefits of moral transgressions outweigh the expected costs.
The rigidity of mortgage contracts and a variety of frictions in the design of the market and the intermediation sector hindered efforts to restructure or refinance household debt in the aftermath of the financial crisis. In this paper, we focus on understanding the design and implementation challenges of ex ante and ex post debt relief solutions that are aimed at a more efficient sharing of aggregate risk between borrowers and lenders.
Past studies have found that multicultural approaches to diversity can reduce prejudice and stimulate positive intergroup relations. The current research explored a possible negative side effect of multiculturalism: whether organizational diversity structures geared toward multiculturalism can conceal racial discrimination and delegitimize racial discrimination claims.