Joshua Lewis

Joshua Lewis
  • Doctoral Candidate

Contact Information

  • office Address:

    527.2 Jon M. Huntsman Hall
    3730 Walnut Street
    Philadelphia, PA 19104

Research Interests: judgment and decision making, consumer behavior

Links: CV


Joshua Lewis is a third-year doctoral student in the Decision Processes group. He studies judgment and decision making, with a consumer behavior bent.

Joshua’s primary stream of researcher concerns estimation biases such as anchoring. For example, he researches how a reluctance to make extreme estimates exacerbates anchoring biases (Lewis, Gaertig & Simmons, working paper); how to optimize the extremity of anchors to maximize consumer valuations (Lewis & Green, working paper); and how the framing of an estimation task influences what information people use for their estimate (Lewis & Simmons, working paper).

As well as estimation biases, Joshua researches how forgone options act as reference points (Green & Lewis, working paper); how and when providing charitable donors with cost effectiveness information worsens their donation decisions (Lewis & Small, working paper); and how the best strategies to maintain trust depend upon relationship type (Lewis, Levine & Schweitzer, working paper).

Joshua was born and raised in the UK. Before joining Wharton, he worked in London as a fixed income analyst for Henderson Global Investors. He also completed a bachelor’s degree in Economics from the University of Warwick, and worked as a researcher for the Warwick Policy Lab.

Continue Reading


How New Technologies Will Radically Reshape India’s Workforce

India will have the world’s largest workforce by 2027. But as AI, blockchain and other technologies quickly render existing ways of working obsolete, training will become more critical than ever.

Knowledge @ Wharton - 2018/02/23
Will India’s 2018 Budget Spur Growth — and Modi’s Re-election?

India’s economy is poised to rebound. But realizing the potential requires a smoother absorption of big structural reforms, revived private investment and stable oil prices, say experts.

Knowledge @ Wharton - 2018/02/22
Microsoft CEO Satya Nadella: How Empathy Sparks Innovation

Microsoft CEO Satya Nadella recounted his unlikely ascent to the top job and how the software giant’s culture is changing, during a recent talk at Wharton.

Knowledge @ Wharton - 2018/02/22