Uri Teaching
Uri Simonsohn
Associate Professor
OPIM - The Wharton School
University of Pennsylvania
uws@wharton.upenn.edu
Huntsman Hall 548
3730 Walnut Street
Philadelphia, PA19104

Seminars at Penn


last update: 2012 05 22
Vita

Power point slides
Daily Horizons (formerly: The interviewer fallacy)

Spurious? Name Similarity Effects (Implicit Egotism) in Marriage, Job, and Moving Decisions

Round Numbers as Goals: Evidence from the SAT, Baseball and the Lab

Lessons from an Oops at Consumer Reports: Consumer Follow Experts; Ignore Invalid Information


Publications
Simonsohn U, Gino, F. (in press) "Daily Horizons: Evidence of Narrow Bracketing in Judgment from 10 years of MBA-admission Interviews", Psychological Science

Simmons J., Nelson L., Simonsohn U. (2011) "False-Positive Psychology: Undisclosed Flexibility in Data Collection and Analysis Allow Presenting Anything as Significant", Psychological Science, V22(11), pp.1359-1366  (SSRN)

Logical argument, experimental demonstration, and simulations showing that if a set of disclosure requirements we propose are not followed, results in experiments are uninterpretable.

Saiz, A. & Simonsohn U. (in press) "Proxying for Unobservable Variables with Internet Document Frequency",
  Journal of the European Economic Association
Frequency of Internet documents about X proxies for frequency of X; using insight we replicate published studies predicting corruption.

Simonsohn U. (2011) "Spurious Also? Name Similarity Effects (Implicit Egotism) in Employer Decisions," Psychological Science, V22(8), pp.1087-1089 (SSRN)
People disproportionately work for companies with which they share an initial. Probably a spurious correlation.

Simonsohn U. (2011) "Spurious? Name Similarity Effects (Implicit Egotism) in Marriage, Job, and Moving Decisions", Journal of Personality and Social Psychology, V101(1) pp.1-24 (SSRN
Three JPSP papers find that people disproportionately choose spouses, places to live and occupations with names similar to their own. Analyzing the same and additional data I find that the existing evidence is spurious.

  note: Pelham and Carvallo wrote a rebuttal to this paper. Here is my 5-page rejoinder titled "In Defense of Diligence".

Pope D., Simonsohn U. (2011) "Round Numbers as Goals: Evidence from Baseball, SAT Takers, and the Lab", Psychological Science,
January, V22(1), p.71-79 (.pdf)
When performance is measured numerically, round numbers become implicit goals that strongly influence behavior around them.

Simonsohn U. (2011) "Lessons from an Oops at Consumer Reports: Consumer Follow Experts; Ignore Invalid Information", Journal of Marketing Research, February V48(1) p.1-12 (.pdf)
Consumer Reports released & then retracted info on carseat safety. Surprisingly, people successfully ignored the retracted information.
 
Simonsohn, U. (2010) "eBay's Crowded Evenings: Competition Neglect in Market Entry Decisions", Management Science, V56(7), p.1060-1073  (.pdf)
Too many sellers end their auctions at peak time, so they lose money.

 Simonsohn, U. (2010) "Weather to Go to College", Economic Journal (.pdf)
More prospective college students enroll if they visit campus on cloudy day.
 
Simonsohn, U. (2009) "Direct-Risk-Aversion: Evidence from Risky Prospects Valued Below Their Worst Outcome" Psychological Science, V20(6) p.686-692 (.pdf)
People value lotteries less than their worst outcome due to uncertainty; not confusion or "joint-evaluation."
 
Small, D. & Simonsohn U. (2008)  "Friends of Victims: Personal Experience and Prosocial Behavior."  Journal of Consumer Research, V.35 p.532-542 (.pdf)
Donors give more to charities helping the misfortune of someone they know.
 
Simonsohn, U. & Ariely D. (2008) "When Rational Sellers Face Non-Rational Consumers: Evidence from Herding on eBay," Management Science V54(9) p.1624-1637 (.pdf)
eBay bidders choose auctions with more bids, so sellers start them cheap.
 
Simonsohn, U., Karlsson, N., Loewenstein, G. and Ariely, D. (2008) "The Tree of Experience in the Forest of Information: Overweighing Experienced Relative to Observed Information" Games and Economic Behavior, 62, pp. 263-286 (.pdf)
People respond more to information that affected them directly.
 
Simonsohn, U. (2007) "Clouds Make Nerds Look Good: Field Evidence of the Influence of Incidental Factors on Decision Making", Journal of Behavioral Decision Making, 20(2) p.143-152 (.pdf)
College applicants' academic attributes are weighted more if evaluated on cloudy days.
 
Simonsohn, U. & Loewenstein G. (2006) "Mistake #37: The Impact of Previously Faced Prices on Housing Demand," Economic Journal, 116(1) pp.175-199 (.pdf)
Movers from more expensive cities rent more expensive apartments, at first.
 
Simonsohn, U. (2006) "New-Yorkers Commute More Everywhere: Contrast Effects in the Field," Review of Economics and Statistics, 88(1) pp.1-9 (.pdf)
Movers from cities with longer commutes live further from work, at first.