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New research on prejudice and bias from Harvard Business School faculty on issues including racial discrimination in the sharing economy, politically biased language in Encyclopædia Britannica and Wikipedia, and why investors prefer pitches from male entrepreneurs over those from female entrepreneurs.
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Has the Glass Ceiling Been Broken (or at Least Cracked)?

by Sean Silverthorne

Harvard Business School researchers have been at the forefront of studies on gender discrimination for several decades. As International Women's Day 2019 approaches, here is what they've discovered so far. Open for comment; Comment(s) posted.

The Revision Bias

by Ximena Garcia-Rada, Leslie John, Ed O’Brien, and Michael I. Norton

Companies often release revised editions of books, director’s cuts of movies, and technological updates, on the assumption that revising products and services leads to better outcomes. Nine studies, however, document the revision bias: the tendency to prefer things that were revised, regardless of whether the revised versions are objectively better than their predecessors.

How Gender Stereotypes Kill a Woman’s Self-Confidence

by Dina Gerdeman

Researchers believe gender stereotypes hold women back in the workplace. Katherine Coffman's research adds a new twist: They can even cause women to question their own abilities. Open for comment; Comment(s) posted.

Stereotypes and Belief Updating

by Katherine B. Coffman, Manuela Collis, and Leena Kulkarni

Increasing evidence demonstrates that stereotyped beliefs drive key economic decisions. This paper shows the significant role of self-stereotyping in predicting beliefs about one’s own ability. Stereotypes do not just affect beliefs about ability when information is scarce. In fact, stereotypes color the way information is incorporated into beliefs, perpetuating initial biases.

The Better Way to Forecast the Future

by Roberta Holland

We can forecast hurricane paths with great certainty, yet many businesses can't predict a supply chain snafu just around the corner. Yael Grushka-Cockayne says crowdsourcing can help. Open for comment; Comment(s) posted.

Women Receive Harsher Punishment at Work Than Men

by Michael Blanding

Women caught in misconduct were 20 percent more likely to be fired and 30 percent less likely to find new employment in the financial services industry, reports new research by Mark Egan and colleagues. Open for comment; Comment(s) posted.

When Harry Fired Sally: The Double Standard in Punishing Misconduct

by Mark Egan, Gregor Matvos, and Amit Seru

Despite committing misconduct less often and less severely than men, female advisers in the financial adviser industry face more severe punishment in the labor market, a finding strongly correlated with the gender composition of the managerial team. A similar punishment gap and mitigating factors affect ethnic minority men.

Pro Basketball Coaches Display Racial Bias When Selecting Lineups

by Michael Blanding

Research finds that NBA coaches give slightly more playing time to players of their own race, but the gap disappears at playoff time. Research by Letian Zhang. Open for comment; Comment(s) posted.

The Impact of Penalties for Wrong Answers on the Gender Gap in Test Scores

by Katherine B. Coffman and David Klinowski

Multiple-choice questions on standardized tests are widely seen as objective measures of student ability, but the common practice of assessing penalties for wrong answers may generate gender bias. This study documents the impact of a policy change that removed penalties for wrong answers on the national college entry exam in Chile. This simple change reduced the gender gap in test performance by 9 percent.

Gifts of the Immigrants, Woes of the Natives: Lessons from the Age of Mass Migration

by Marco Tabellini

Investigating the economic and political effects of immigration across US cities between 1910 and 1930, this paper finds that political opposition to immigration can arise even when immigrants bring widespread economic benefits. The paper provides evidence that cultural differences between immigrants and natives were responsible, at least in part, for natives’ anti-immigration reactions.

You Probably Have a Bias for Making Bad Decisions. Here's Why.

by Sean Silverthorne

Cognitive biases cloud our decision making like a San Francisco fog in the brain. Here is recent research on psychological factors that fool us into hiring bad employees, favoring one gender or race over another, or giving more weight to the last information we've received. Open for comment; Comment(s) posted.

Is Overconfidence a Motivated Bias? Experimental Evidence

by Jennifer M. Logg, Uriel Haran, and Don A. Moore

People are most at risk of making overly positive self-assessments when their assessment criteria are not clearly defined. Yet, even within ambiguous domains, providing clearly defined criteria for what makes a productive employee, an effective leader, and an efficient team, may help people better calibrate their self-perceptions with reality.

When Gender Discrimination Is Not About Gender

by Katherine B. Coffman, Christine L. Exley, and Muriel Niederle

Gender discrimination in a typically male workplace is not necessarily driven by misogyny. Rather, employers are less willing to hire applicants associated with a lower performing group-even if that group is defined by a demographic characteristic other than gender.

Simple Ways to Take Gender Bias Out of Your Job Ads

by Carmen Nobel

Iris Bohnet's book What Works: Gender Equality by Design, discusses how organizations can leverage findings from behavioral science research to fight gender bias in the workplace—starting with job listings. Open for comment; Comment(s) posted.

What's Behind the Unexpected Trump Support from Women

by Laura Morgan Roberts and Robin Ely

Why did Donald Trump’s candidacy appeal to so many women voters? Laura Morgan Roberts and Robin Ely say women from varying backgrounds cast their ballots for a number of reasons related to gender, economics, and perceptions of leadership. Open for comment; Comment(s) posted.

Ideological Segregation among Online Collaborators: Evidence from Wikipedians

by Shane Greenstein, Yuan Gu, and Feng Zhu

This study analyzes the dynamics supporting or undermining segregated conversations. Among the findings: In spite of their great differences, contributors on Wikipedia tend to move toward less segregated conversations. Contributors’ positions become more neutral over time, not more extreme. In addition, the conflict resolution mechanisms and the mix of informal and formal norms at Wikipedia play an important role in encouraging a community that works toward a neutral point of view.

Airplane Design Brings Out the Class Warfare in Us All

by Dina Gerdeman

Air rage is often blamed on overcrowded flights and postage stamp-size seats, but researchers Michael Norton and Katherine A. DeCelles find another culprit: resentment toward passengers in first class. Open for comment; Comment(s) posted.

Racial Discrimination in the Sharing Economy: Evidence from a Field Experiment

by Benjamin G. Edelman, Michael Luca & Daniel Svirsky

Online platforms such as Airbnb create new markets by eliminating search frictions, building trust, and facilitating transactions. With the rise of the sharing economy, however, comes the prospect of racial discrimination that is unheard of in established platforms. The authors suggest changes to Airbnb’s site design to reduce or prevent discrimination.

Political Polarization: Why We All Just Can't Get Along

by Roberta Holland

Dylan Minor's new research explains how political polarization works and why we have lost the ability to compromise. Open for comment; 0 Comment(s) posted.

Is Wikipedia More Biased Than Encyclopædia Britannica?

by Michael Blanding

By identifying politically biased language in Encyclopædia Britannica and Wikipedia, Feng Zhu hopes to learn whether professional editors or open-sourced experts provide the most objective entries. Open for comment; 16 Comment(s) posted.