Columbia Business School Research

We investigate the effectiveness of regulatory oversight exercised by the SEC against auditors over the years 1996–2009. The evidence suggests that the SEC is significantly less likely to name a Big N auditor as a defendant, after controlling for both the severity of the violation and for the characteristics of companies more likely to be audited by Big N auditors. Further, when the SEC does charge Big N auditors, the SEC (i) is less likely to impose harsher penalties on the Big N; and (ii) is less likely to name a Big N audit firm relative to individual Big N partners.

Research has shown that possessions have the power to change consumers' self-construal and activate different aspects of the self. Building on this literature, the authors suggest that the salience of product ownership not only activates the product-related self but also simultaneously deactivates product-unrelated selves, resulting in impaired performance on tasks unrelated to the activated self. In five experiments, we first elicit feelings of ownership over a product (e.g., a calculator) to activate a product-related identity (e.g., the math self).

Studies of how quantitative easing (QE) impacts asset prices typically look for effects in one- or two-day windows around QE announcements. This methodology underestimates the impact of QE on asset classes whose responses happen outside of this short time frame. We document that QE announcements by the Fed, ECB, and the Bank of England are associated with: quick price reactions of medium- and long-term government bonds; but with reactions in equity and equity implied volatility that occur over several weeks.

We quantify the difference in the convenience yield of U.S. Treasuries and government bonds of other developed countries by measuring the deviation from covered interest parity between government bond yields. We call this wedge the "U.S. Treasury Premium." We document a secular decline in the U.S. Treasury Premium at medium to long maturities. The five-year U.S. Treasury Premium averages approximately 21 basis points prior to the Global Financial Crisis, increases up to 90 basis points during the crisis, and has disappeared after the crisis with the post-crisis mean at -8 basis points.

Effectively delegating work to others is considered critical to managerial success, as it frees up managers' time and develops subordinates' skills. We propose that female leaders are less likely than male leaders to capitalize on these benefits of delegating. Although delegation has communal (e.g., relational) and agentic (e.g., assertive) properties, we argue that female leaders, as compared to male leaders, find it more difficult to delegate tasks due to gender-role incongruence.

Prior studies linking grit — defined as perseverance and passion for long-term goals — to performance are beset by contradictory evidence. As a result, commentators have increasingly declared that grit has limited effects. We propose that this inconsistent evidence has occurred because prior research has emphasized perseverance and ignored, both theoretically and empirically, the critical role of passion, which we define as a strong feeling toward a personally important value/preference that motivates intentions and behaviors to express that value/preference.

Consistent decisions are intuitively desirable and theoretically important for utility maximization. Neuroeconomics has established the neurobiological substrate of value representation, but brain regions that provide input to this network is less explored. The constructed-preference tradition within behavioral decision research gives a critical role to associative cognitive processes, suggesting a hippocampal role in making consistent decisions.

We examine the Internet’s impact on the cross-border distribution of cultural goods and assess its implications for cultural policy and cultural diversity. We present a stylized model of a two-country economy where governments are endowed with political preferences over the consumption of domestic content and enact import barriers and subsidies to protect it. We introduce peer-to-peer file sharing as a distinct distribution channel enabled by the Internet that provides access to all media products at a low cost. We report two main findings.

This article offers a primer on social power and social class with respect to their theoretical importance, conceptual distinction, and empirical relationship. We introduce and define the constructs of social power, social class, and one's psychological sense of power. We next explore the complex relationship between social power and social class. Because social class can produce a sense of power within an individual, studies on social power can inform theory and research on social class.

The rise of "Big Data" had a big impact on marketing research and practice. In this article, we first highlight sources of useful consumer information that are now available at large scale and very little or no cost. We subsequently discuss how this information — with the help of new analytical techniques — can be translated into valuable insights on consumers' psychological states and traits that can, in turn, be used to inform marketing strategy.

In hospitals, Step Down Units (SDUs) provide an intermediate level of care between the Intensive Care Units (ICUs) and the general medical-surgical wards. Because SDUs are less richly staffed than ICUs, they are less costly to operate; however, they also are unable to provide the level of care required by the sickest patients. There is an ongoing debate in the medical community as to whether and how SDUs should be used. On one hand, an SDU alleviates ICU congestion by providing a safe environment for post-ICU patients before they are stable enough to be transferred to the general wards.

Community differences in organizing capacity have been attributed to cohesion and trust among population members and from population members to organizations and have been seen as an enduring feature of communities. The experience of a crisis, and the handling of the crisis, can be seen as a test of cohesion that verifies community support of organizations or proves its absence.

Exploiting variation in the timing of resets of adjustable rate mortgages (ARMs), we find that a sizable decline in mortgage payments (up to 50%) induces a significant increase in car purchases (up to 35%). This effect is attenuated by voluntary deleveraging. Borrowers with lower incomes and housing wealth have significantly higher marginal propensity to consume. Areas with a larger share of ARMs were more responsive to lower interest rates and saw a relative decline in defaults and an increase in house prices, car purchases, and employment.

Many organizations employ diversity initiatives, such as diversity mission statements, in order to effectively recruit and manage a diverse workforce. One approach emphasizes multiculturalism, which focuses on the acknowledgement and celebration of racial diversity. Multiculturalism has been found to produce greater inclusion by racial majorities and increased psychological engagement of racial minorities, but has also been linked to negative outcomes among Whites, from feelings of exclusion to greater stereotyping to perceiving racial discrimination claims as less valid.

Banks' exposure to large-scale asset purchases, as measured by the relative prevalence of mortgage-backed securities on their books, affects lending following unconventional monetary policy shocks. Using a difference-in-differences identification strategy, this paper finds strong effects of the first and third round of quantitative easing (QE1 and QE3) on credit. Highly affected commercial banks increase lending by 2 to 3% relative to their counterparts. QE2 had no significant impact, consistent with its exclusive focus on Treasuries sparsely held by banks.

Intertemporal choice impacts many important outcomes, such as decisions about health, education, wealth, and the environment. However, the psychological processes underlying decisions involving outcomes at different points in time remain unclear, limiting opportunities to intervene and improve people’s patience. This research examines information-search strategies used during intertemporal choice and their impact on decisions. In experiment 1, we demonstrate that search strategies vary substantially across individuals.

Additive synergies are contrasted with multiplicative ones in the context of post-acquisition patent content. Multiplicative-innovation synergies are indicated where a firm's prior-art patents were granted in technologies that are different than those of a focal patent's grant. Such content patterns suggest that inventors have searched to utilize technologies that are beyond locally-expected alternatives.

Technological innovations enjoy synergies that vary in their speed and magnitude of impact, depending upon whether they are additive or multiplicative in nature. Additive-innovation synergies build incrementally on familiar technologies (as is reflected in the technologies built upon within their patents’ respective antecedents) and the duration of their effect is shorter-lived. Multiplicative-innovation synergies arise from combining greater proportions of diverse technologies and their effects have longer duration.

I assess the impact that pharmaceutical innovation had on cancer mortality in Mexico during the period 2003–2013, by investigating whether there were larger declines in the age-standardized mortality rate of cancer sites (breast, lung, colon, etc.) that were subject to more pharmaceutical innovation, controlling for changes in the age-standardized cancer incidence rate. The estimates indicate that new drugs launched during 1991–2001 reduced the age-standardized cancer mortality rate by 16%, i.e., at an average annual rate of about 1.6%.

We estimate the causal effect of sovereign default on the equity returns of Argentine firms. We identify this effect by exploiting changes in the probability of Argentine sovereign default induced by legal rulings in the case of Republic of Argentina v. NML Capital. We find that a 10 percent increase in the probability of default causes a 6 percent decline in the value of Argentine equities and a 1 percent depreciation of a measure of the exchange rate. We examine the channels through which a sovereign default may affect the economy.

The article shows that outside ownership of media moves in stages -- from media properties as the mouthpiece for personal and business interests, to a second stage of conglomerates seeking economic “synergies” of performance, to a third stage dominated by financial portfolio diversification. These phases of outside media ownership correspond to the stages of economic development in that country.The article finds that in rich countries, the ownership of media by industrial companies as a way to create political influence has been declining.

Although choosing from large assortments has often been found to be demotivating, a robust finding in the marketing literature is that consumers generally prefer larger product assortments. Standard explanations for this preference for larger assortments have focused on reason-based considerations revolving around large assortments enabling potentially “better” choices. This paper offers a different and novel, affect-based explanation.

We examine the relation between shareholder activism and voluntary disclosure. An important consequence of voluntary disclosure is less adverse selection in the capital markets. One class of traders that finds less adverse selection unprofitable is activist investors who target mispriced firms whose valuations they can improve. Consistent with this idea, we find that managers issue earnings and sales forecasts more frequently when their firm is more at risk of attack by activist investors, and that these additional disclosures reduce the likelihood of becoming an activist's target.

Since John Lynch’s presidential address at the 1998 annual meeting of the Association for Consumer Research (Lynch 1998), a large number of articles have appeared in the marketing literature pertaining to the review process in our field. Almost every new journal editor makes some statement about the standards and etiquette that reviewers should adopt during his or her editorial regime. For some good examples, see Shugan (2003), Desai (2011), and Kumar (2016). Other useful discussions of the review process also exist (e.g., Holbrook’s 1986 paper with seven suggestions for reviewers).

Stress can impact various aspects of a person's well-being. While some researchers have suggested that consumption-related activities may cause stress, no research has yet explored such stress among vulnerable, younger consumers. To better understand this phenomenon, the concept of adolescents' perceived brand deprivation stress (BDS) is introduced as a state of tension perceived negatively by a young consumer when he or she does not have specific brands from a particular product category.

Past research paints a mixed picture of rationales in negotiations: Some findings suggest rationales might help, whereas others suggest they may have little effect or backfire. Here, we distinguish between two kinds of rationales buyers commonly employ — constraint rationales (referring to one's own limited resources) and disparagement rationales (involving critiques of the negotiated object) — and demonstrate their divergent effects.

We exploit the release of a mobile application for a financial aggregation platform to analyze how technology adoption changes consumer financial decision making. The app reduced the cost of accessing personal financial information, and we find that this led to a drop in non-sufficient fund (NSF) fees. Because of the manner in which these fees are incurred, this represents an unambiguous welfare improvement for users of the platform. The leading explanation for this result appears to be mistake avoidance due to easier access to information.

The adoption and diffusion of new products and behaviors has been studied extensively and comprehensively (e.g., Rogers 2003). Disadoption — how and why people volitionally stop using products and/or cease certain behaviors (e.g., customer defection, smoking cessation) — by contrast, has received less and more situation-specific attention. This paper presents a general (conceptual) framework for understanding disadoption. Disadoption is defined and delineated from other behavioral discontinuances.

We introduce a \"bad environment-good environment\" (BEGE) technology for consumption growth in a consumption-based asset pricing model with external habit formation. The model generates realistic non-Gaussian features of consumption growth and fits standard salient features of asset prices including the means and volatilities of equity returns and a low risk free rate. BEGE dynamics additionally allow the model to generate realistic properties of equity index options prices, and their comovements with the macroeconomic outlook.

Customer Relationship Management (CRM) campaigns have traditionally focused on maximizing the profitability of the targeted customers. In this paper we investigate the social effects of CRM campaigns. We demonstrate that, in business settings that are characterized by network externalities, a CRM campaign that is aimed at changing the behavior of specific customers propagates through the social network, thereby also affecting the behavior of non-targeted customers.

While research on conspicuous consumption has typically analyzed how people spend money on products that signal status, we investigate conspicuous consumption in relation to time. We argue that a busy and overworked lifestyle, rather than a leisurely lifestyle, has become an aspirational status symbol. A series of studies shows that the positive inferences of status in response to busyness and lack of leisure are driven by the perceptions that a busy person possesses desired human capital characteristics (competence, ambition) and is scarce and in demand on the job market.