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.
In modern equity markets, traders have a choice of many exchanges, each operating as an electronic limit order book that can be modeled as a pair of multi-class queues operating under the "time/price" priority rule. The dynamics of the exchanges are coupled via price protection mechanisms. We present mathematical models to study the order routing problem, characterize market equilibria, and derive insights about the queue, delay and adverse selection measures for different exchanges. We present some empirical data that supports our findings.
Does private regulation work to provide and preserve collective benefits, and if so, when? To answer these questions, we focus on social structure and competitive exclusion. We argue that effective private regulation depends on social structures that support normative control of interested parties. However, competitive dynamics may transform private regulation into an instrument to defend the interest of institutional incumbents.
What are the respective roles of the public and private sectors in drug development?
The United States faces a foreclosure crisis. The Mortgage Bankers Association reported that slightly more than four percent of the loans in the United States are in the foreclosure process as of the third quarter of 2010. RealtyTrac reported in January 2011 that nearly three million homes received foreclosure filings in 2010. In addition to the current foreclosures, there exist a substantial number of potential foreclosures that will occur in the next several years. Goodman (2010) estimates that there may be another seven million homes that will face foreclosure.
We decentralize incentive efficient allocations in large adverse selection economies by introducing a Walrasian market for mechanisms, that is, for menus of contracts. Facing a budget constraint, informed individuals choose lotteries over mechanisms, while firms supply (slots at) mechanisms at given prices. An equilibrium requires that firms cannot favorably change, or cut, prices. We show that an equilibrium exists and is incentive efficient.
We examine how consumers update their confidences in ordinal (relative) judgments while evaluating sequential product-ranking and source-accuracy data in percentage versus frequency formats. The results show that when sequential data are relatively easier to mathematically combine (e.g., percentage data), consumers revise their judgments in a way that is consistent with an averaging model but inconsistent with the normative Bayesian model.
This paper proposes an accounting for revenues as an alternative to the proposals currently begin aired by the FASB and IASB. Existing revenue recognition rules are vague, resulting in messy application, so the Boards are seeking a remedy. However, their proposals replace the traditional criteria — revenue is recognized when it is both "realized or realizable" and "earned" — with similarly vague notions that require both the identification of a "performance obligation" and the "satisfaction" of a performance obligation.
In this research we propose a web-based adaptive self-explicated approach for multi-attribute preference measurement (conjoint analysis) with a large number (ten or more) of attributes. Our approach overcomes some of the limitations of previous self-explicated approaches. We developed a computer-based self-explicated approach that breaks down the attribute importance question into a sequence of constant-sum paired comparison questions.
We examine early approaches to the agency problem by asking when captains owned ships in eigheenth and nineteenth century shipping, and how captain-ownership effected voyage success. For each ship we observe the identity of the owners, the identity of the ship captain, the route pursued for each voyage, and various outcome measures for each voyage. We also have information on vessel construction characteristics, the sailing history of each vessel, and the occupations of the owners.
We propose an origination-and-contingent-distribution model of banking, in which liquidity demand by short-term investors (banks) can be met with cash reserves (inside liquidity) or sales of assets (outside liquidity) to long-term investors (hedge funds and pension funds). Outside liquidity is a more efficient source, but asymmetric information about asset quality can introduce a friction in the form of excessively early asset trading in anticipation of a liquidity shock, excessively high cash reserves, and too little origination of assets by banks.
In this chapter, I describe the coordinates of the global application of public-private partnerships (PPP) and identify central commonalities of sector collaboration for both infrastructure development and urban redevelopment/regeneration projects. The comparison across these two types of "hard" asset-based initiatives will, I hope, highlight the central issues of implementation and underscore the need for policymakers to address the nature of risk sharing, which I believe is central to the PPP strategy at the project level.
Combinatorial auctions (CAs) are multi-unit auction mechanisms in which bidders can bid on combinations of items or packages. CAs have received considerable attention from academia, and their practical use has increased significantly over recent years especially in procurement projects. Units in procurement projects often exhibit cost synergies, and using a CA can be particularly advantageous to the auctioneer because it enables bidders to express their cost synergies in the bidding process.
In social dilemmas, negotiations, and other forms of strategic interaction, mind-reading—intuiting another party’s goals and intentions—has an important impact on an actor’s own behavior. In this paper, we present a model of how perceivers shift between social projection (using one’s own mental states to intuit a counterpart’s mental states) and stereotyping (using general assumptions about a group to intuit a counterpart’s mental states). Study 1 extends prior work on perceptual dilemmas in arms races, examining Americans’ perceptions of Chinese attitudes toward military escalation.
When the removal of trade barriers coincides with the elimination of inefficient institutions created to manage them, the gains from trade increase. We investigate the change in productivity associated with the removal of quotas on Chinese textile and clothing exporters as well as the elimination of the export licensing regime which managed quota allocation. When quotas were removed in 2005, Chinese export value and quantity surged and export prices declined.
Can subsidies promote Pareto-optimum coordination? We found that partially subsidizing 2 out of 6 players in a laboratory coordination game usually produced better coordination and higher total payoffs both with deterministic and stochastic payoffs. After removing the subsidy, high coordination continued in most groups with stochastic payoffs, but declined for groups with deterministic ones. A post-game survey indicated that decision justifications differ between deterministic and stochastic payoff settings.
The measurement and timing of reported revenue is critical to performance measurement and the development of accurate forecasting models. GM used incentives to get customers to buy its vehicles. This case asks students to consider how GM should report the sales so that the data is a valid indication of performance and can be used to accurately forecast future sales.
This paper investigates the impact of the introduction of new orphan drugs on premature mortality from rare diseases using longitudinal, disease-level data obtained from a number of major databases. The analysis is performed using data from two countries: the U.S. (during the period 1999-2006) and France (during the period 2000-2007).
In this work we suggest that trait observability is an important predictor of what kind of feedback will be incorporated into self-knowledge. In two studies we find evidence that feedback about ones own observable traits, referencing social or physical characteristics, becomes incorporated into self-knowledge. In our work, feedback on less observable traits, referencing internal states or competency, was not incorporated into self-knowledge. This pattern holds for both positive and negative feedback, regardless of whether the feedback is explicitly or implicitly provided.
We develop a theoretical model to investigate the incentives for coordinating the positioning and pricing of horizontally differentiated products in the context of a vertical trading relationship between a retailer and multiple suppliers. We also use the model to analyze various trading relationships, such as category management, and characterize the channel efficiency of each, leading to interesting insights about when such practices may be most effective.
The problem of determining nurse staffing levels in a hospital environment is a complex task due to variable patient census levels and uncertain service capacity caused by nurse absenteeism. In this paper, we combine an empirical investigation of the factors affecting nurse absenteeism rates with an analytical treatment of nurse staffing decisions using a novel variant of the newsvendor model. Using data from the emergency department of a large urban hospital, we find that absenteeism rates are correlated with anticipated future nurse workload levels.
The Internet has increased the flexibility of retailers, allowing them to operate an online arm in addition to their physical stores. The online channel offers potential benefits in selling to customer segments that value the convenience of online shopping, but it also raises new challenges. These include the higher likelihood of costly product returns when customers' ability to "touch and feel" products is important in determining fit.
We study the bidding strategies of vertically differentiated firms that bid for sponsored search advertisement positions for a keyword at a search engine. We explicitly model how consumers navigate and click on sponsored links based on their knowledge and beliefs about firm qualities. Our model yields several interesting insights; a main counterintuitive result we focus on is the "position paradox." The paradox is that a superior firm may bid lower than an inferior firm and obtain a position below it, yet it still obtains more clicks than the inferior firm.
We propose that hierarchy is such a prevalent form of social organization because it is functionally adaptive and enhances a group's chances of survival and success. We identify five ways in which hierarchy facilitates organizational success. Hierarchy (a) creates a psychologically rewarding environment; (b) motivates performance through hierarchy-related incentives; (c) capitalizes on the complementary psychological effects of having versus lacking power; (d) supports division of labor, and, as a result, coordination; and (e) reduces conflict and enhances voluntary cooperation.
A long history of social science research has established the homophily principle — contact between similar people occurs at a higher rate than between dissimilar people — yet the extent to which people draw on this principle when forming first impressions remains unclear. We argue and present evidence that people have a lay theory of homophily that they invoke when forming impressions of others. Perceivers anchor the impressions they form of a target on their knowledge of the people with whom the target associates.
We address the simultaneous determination of pricing, production, and capacity investment decisions by a monopolistic firm in a multi-period setting under demand uncertainty. We analyze the optimal decision with particular emphasis on the relationship between price and capacity. We consider models that allow for either bi-directional price changes or models with markdowns only, and in the latter case we prove that capacity and price are strategic substitutes.
We review accounting principles related to the reporting of marketing activities and evaluate their implications for marketing research and practice. Based on our review, we argue that current accounting practices contribute significantly to the declining influence of marketing within organizations and the rise of myopic management. Financial reports misrepresent marketing contribution and impede its fair assessment. Changes to current marketing accounting practices are needed. Balance sheet recognition of all marketing-related intangibles emerged as the prevailing proposed solution.
This paper proposes an accounting for revenues as an alternative to the proposals currently begin aired by the FASB and IASB. Existing revenue recognition rules are vague, resulting in messy application, so the Boards are seeking a remedy. However, their proposals replace the traditional criteria — revenue is recognized when it is both "realized or realizable" and "earned" — with similarly vague notions that require both the identification of a "performance obligation" and the "satisfaction" of a performance obligation.
Standard valuation models forecast cash flows or earnings, add a growth rate, and discount the cash flows to their present value with a discount rate that typically reflects the cost of capital. But as the author argues, projecting the long-term growth rate is essentially speculative; and along with uncertainty about the growth rate, analysts generally do not have a good grasp of the discount rate either.
Accounting and valuation are so intertwined that valuation is really a matter of accounting; valuation involves accounting for value. Accordingly, a valuation is only as good as the accounting underlying it. How can one ask the question of what the price-earnings should be if the earnings are fuzzy? What is the meaning of price-to-book if book values are suspect? There is a question for both the investor and the accountant to answer: What is good accounting for valuation? Do International Financial Reporting Standards (IFRS) or U.S.
Direct advertising—sending promotional messages to individual customers—is increasingly used by marketers as a result of the recent improvements in consumer reachability. Most current methods to calculate optimal budgets for such advertising campaigns consider customers in isolation and ignore word-of-mouth communication (WOM). When the customer base forms a network (as is the case in telecom or social network databases) ignoring WOM clearly leads to suboptimal advertising budgets. This paper develops a model to help address this challenge.
In the wake of the crisis of 2008 and onwards, it has become fashionable to return to the work of Hyman Minsky and Charles Kindleberger, and cite them as showing the ubiquity of crises, how they are an inevitable result of human nature, and how they have therefore to be carefully and thoroughly regulated against. Charles Calomiris considers this view, first clearly distinguishing between financial crises and banking crises.