Poets & Quants 2018 Best 40 Under 40 Professors

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Dear students, dear colleagues,

a big thank thanks to all of you for the overwhelming appreciation. I was truly surprised to see myself listed under POETS & QUANTS’ 2018 Best 40 Under 40 Professors.

Full time 2-yr MBAs in the fall as well AMBAs & NYC-Tech MBAs in the summer, it was truly a fun and exciting year of teaching!!!

Fake news in sports and how to filter real-world information

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When obtaining a post-secondary education in Economics and/or Business related fields, one typically spends a considerable amount of time studying various models of decision-making. Arguably two prominent reasons for teaching those models to students not targeting an academic career—most notably the majority of undergraduate students as well budding MBAs—are a) to provide them with frameworks to forecast and foresee the decisions of others and b) to sharpen their ability in making decisions themselves (which, in turn, is closely related to a)).

For their lack of opportunities to make significant decisions themselves while still in training, we typically resort to (real-world) examples featured in the business press or to (fictitious) business cases. In order to provide them with practice, we jointly tackle questions as in “how would you decide in this situation” or “what do you predict as the likely outcome of that scenario” in class. To put it bluntly, we teach them how to read, analyze and understand subject-specific articles. In the age of “fake news” and ubiquitous news coverage, I truly hope we also teach them how not to.

I typically challenge the class to feed each other with interesting and currently published information related to course content. Recently, a student of mine sent me this article published in the Economist linking the National Football League (NFL) with game theory. This student conceivably made a brilliant choice. The major sports leagues in the United States constitute an arena of decision-making commonly beloved by students, game theory is exciting as it adds the strategic component and The Economist is a highly reputable media outlet of business and politics. On the surface, I could not have chosen better myself.

In short, the article describes the contract situation between the (in recent decades) chronically unsuccessful Buffalo Bills and Tyrod Taylor, their current starting quarterback (the one who throws the ball), in early 2017. The Buffalo Bills benched Taylor for their last regular season game on New Year’s eve. At this point, Buffalo had no chance of reaching the playoffs anymore, i.e. it was de facto the last game of their season. After Taylor had played through a groin injury for several weeks, he opted for surgery at the very beginning of the offseason, i.e. 3 days after the last game (in which he did not feature).

The Economist argues that both actions, the Bills benching Taylor for their last game as well as Tyrod opting for surgery were direct consequences of the incentive structure inherent to their contractual situation. While, as claimed in the article, Taylor was an above average (top third) quarterback at an average quarterback salary, the Bills had the option to cut Taylor for negligible expenses until the beginning of March. However, if Mr. Taylor was rendered not fit to perform football services, the Bills would owe him close to $30M if they fired him.

This, for the Economist, constituted a so-called prisoner’s dilemma, a strategic stand-off between multiple parties in which each party has an unequivocally optimal action, which, if employed by everyone relevant to the game results in the socially worst scenario. In other words, the Bills had an incentive to bench Taylor for the last game whereas he should try everything possible not to be fit to play during the offseason (at least until March). What is more, it was stipulated that the Bills overlooked that they were in fact caught in a repeated prisoner’s dilemma with varying actors, that is other players with who they would have to deal in the future.

The main predictions based on their analysis were that, while not explicitly claimed, it was likely that the Bills were either going to fire Tyrod Taylor while injured (a costly endeavor) or opt not to due to the financial penalty of doing so although they would prefer to part ways. In any case, acting according to their best option would somehow sever the bond between the Bills and their quarterback. Moreover, by not realizing the more general implications of crossing a star player, the Bills would significantly reduce their chances of hiring popular players in the future. All of these implications taken together would even prolong and worsen the Buffalo Bills drought and their absence from the playoffs (17 years and counting). Lastly, it was argued that Rex Ryan, the coach of the Bills until their last season game was fired by the club’s owners since he disagreed with benching Taylor for the last season game.

In fact, the Buffalo Bills and Tyrod Taylor did not part way in the offseason of 2017. Instead, they renegotiated Taylor’s contract to keep him as a quarterback on a significantly lower salary. During the season the Bills took Kelvin Benjamin, a highly rated wide receiver (the one who catches the ball) from the Carolina Panthers, under contract. While the Bills traded assets (future draft picks) for the receiver and the trade was not directly Benjamin’s decision, it seems unlikely that the Bills would part with valuable options for today’s college players for an athlete who was not eager to play for the franchise. As of week 15 of the current season (two more games to follow), the Bills show a record of 8 wins and 6 losses and are at the brink of qualifying for the playoffs for the first time in 18 years.

While one time negative results do most certainly not refute the validity of predictions in the first place, a strategic analysis delivers similar results. A football player who opts for surgery only 3 days after the end of the season, a surgery which has an average recovery time of 7 weeks for non-athletes, does not seem to try everything possible to be deemed unfit when March comes around. If Taylor was above average in quality but paid below peers of his level, would it not be optimal for the team if he took care of his injuries as quickly as possible (to ensure his availability for team as long as possible before the start of the next season)? Many teams in various sports bench their star players in games that are inessential to their season goals. Why was this such a particular move in the case of the Buffalo Bills and Tyrod Taylor and why does this move necessarily carry negative consequences for an already injured player? Why, if Tyrod Taylor was overpaid against the league’s standards, did he agree to continue on the team for a substantially lower salary? Is it more likely that the Bills fired their head coach over a singular disagreement regarding the line-up or due the fact that Mr. Ryan did repeatedly not manage to lead a talented team to the playoffs and that he had an abysmal record in close games?

The model-theoretic analysis of the quoted article is as little capable of answering those questions as its predictions coincide with what unraveled after its publication. Bar a very few superstars, the National Football League (NFL) and its teams have tremendous power over their players as most NFL players would be expected to earn only a tiny fraction of their actual salaries if they were not to make it into or would have to exit the league. This fact paired with a salary cap, which ensures talent to the distributed across teams, guarantees teams significant bargaining power.

Dazzled by the institution of a reputable magazine and by the connection of buzz words and sports, I initially forwarded the article to the remainder of my students without any specific comments. After thoroughly reading and reflecting, however, I decided to scrutinize the article in class. In addition to teaching students how to filter business press articles and other relevant outlets for information and conducting an analysis based on these premises, I believe we ought to realize that, in a world characterized by the ubiquity of unfiltered content, teaching them to challenge this very information is the first crucial step towards a successful analytical contribution. While this sounds trivial, it clearly has to begin with questioning the intentions of author and publisher when reading an article. Whether the creators of an article intend to push a dogma, support a particular political view or simply myopically attempt to maximize readership, abstracting from those intentions should be the very first step in the process of filtering information.

Farewell to the greatest economist of all

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Kenneth J. Arrow, the youngest economist ever to be awarded a Nobel (jointly with John R. Hicks) for “for their pioneering contributions to general economic equilibrium theory and welfare theory”, died aged 95. Arrow, undoubtedly one of the most brilliant minds of recent times, is considered a founding influence of several sub-fields of Economics and among the architects of the advancement of Economics as a science in the twentieth century.

Many share the opinion that his ground-breaking contributions to social choice, innovation, health economics and the economics of risk have been even more ground-breaking for the Economics community than his work on general equilibrium theory for which he was awarded the Nobel Memorial Prize in 1972. Arrow is among a selected very few who consistently made it on the bookies’ list to win another Nobel.

I have briefly pondered about writing a piece on his research contributions to make the unbelievable wealth of his ideas accessible to a broader audience. There is, however, no need to reinvent the wheel. My former classmate Kevin Bryan (who btw considers Arrow to only be the second greatest economist of all time), professor at the University of Toronto, and among other things an expert in the history of Economic Thought, started a brilliant mini series of four posts on Ken Arrow today on his blog A Fine Theorem.

UBER and its curious case of corporate social responsibility!

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Companies in today’s economy compete not only via prices, quantities, marketing or product characteristics but also on a very different level, showings of corporate social responsibility. While it is impossible to disentangle the motivations behind these actions—may it be to achieve a competitive advantage or due to true societal concern— UBER’s strategy is certain to set new standards.

A French businessman once had the brilliant idea to log in to his wife’s UBER app with his credentials to order a ride for the both of them. While he insists to have logged out after doing so, due to an alleged software glitch, the UBER app continued to send reports of all his rides thereafter to his wife’s cell phone. Comparing a real-time record of her husband’s whereabouts with his accounts led her to realize that he was having an affair and ultimately to divorce from the adulterer.

Now, apparently, the left alone Frenchman sued UBER for €45m in damages. It is to be expected that the trial outcome will decisively influence UBER’s future CSR efforts to protect the family as an institution.

Read here about the hilarious events in The Guardian.

Good times at Cornell Business!

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The recently established Cornell College of Business, umbrella to the Charles H. Dyson School of Applied Economics and Management, the School of Hotel Administration, and Samuel Curtis Johnson Graduate School of Management, has been renamed Cornell SC Johnson College of Business after a $150 million gift from SC Johnson and its CEO H. Fisk Johnson who holds five Cornell degrees. Due to parts being dedicated as a challenge grant the potential impact of the gift amounts to $300 million.

Read the Wall Street Journal’s account here.

Birth rates in Amazonia

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To my students:

Consider the following scenario:

In the country of Amazonia boys are valued but girls are worshipped. No mother, however, wants to give birth to multiple girls in order to avoid succession struggles related to the leadership of the family. Thus, every mother gives birth to children precisely until a daughter is born to her.

a) If the probability of giving birth to a son is .5, what ratio of newborns in Amazonia are girls?

b) If the probability of giving birth to a son is 0<s<1, what ratio of newborns in Amazonia are girls?

Why luck matters more than you might think

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My (in the not so far) future colleague Robert H. Frank, Professor of Economics at the Samuel P. Curtis Johnson Graduate School of Management at Cornell University, has recently published his new book “Success and Luck“.

While not denouncing the views of those who attribute unexpected turns of their lives and ventures to divine intervention or plain fate, he shares his beliefs about the ubiquity of chance as a determinant of success in both our private and business lives and indicates why many among us simply underestimate, or, alternatively put stronger, under appreciate the consequences of mere random processes. Bob convincingly argues, however, that chance does not only influence our well-being in a consequential manner but deeply affects many of our actively taken decisions.

Due to the fact that chance features prominently as a determinant of entrepreneurial success in my current work on team building, acquisition of inputs and entrepreneurship, I have admit to be naturally biased towards his chain of argumentation.

Nevertheless, I highly recommend every (in fact also non-) academic and student to read his book as it stresses a perspective of our ventures typically under represented in our ex ante analyses and ex post evaluations of actions. While featuring interesting and partially provocative content, it presents itself also easy too read due to him being a very accomplished writer (Bob Frank was a NY Times columnist for more than a decade). A synopsis of his work can be found in this recent piece of the Atlantic. A taste of the book itself is provided by Princeton University Press.

 

Goodbye Keith Murnighan

Keith Murninghan, professor at the department of Organization & Behavior at the Kellogg School of Management, Northwestern University lost his fight against cancer last Friday. While increasing vertical specialization of PhD programs leads us typically not to know most professors of other departments (while physically close there are academically enormous distances), I was lucky enough to meet Keith several times during my executive MBA teaching stints at the Evanston and Miami campuses of Kellogg. Certainly not being an expert in his research field, I am, however, aware that Keith has been a major contributor to the literature of conflict resolution, in particular opposing group and individual behavior.

More importantly though, from my subjective perspective, he was a special person treating every MBA and PhD student with the utmost respect, always showing genuine interest in one’s work. I had the opportunity to get to know him a little during social events at executive MBA teaching weekends. Not only did he possess an extraordinary interdisciplinary interested mind, but he was also one of the kindest persons I have met during my time at Kellogg. Thus it did not come as a surprise to me that I met him at multiple private graduation events of Kellogg students.

RIP!

Here you can find the official Kellogg notification.