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Matthew Spiegel

  • Did ‘Lockdown Fatigue’ Diminish the Effectiveness of COVID-19 Restrictions?

    COVID-19 restrictions on group gatherings and businesses stretched on for months. Did they continue to save lives? In a new study, Yale SOM’s Matthew Spiegel examines how the effectiveness of restrictions evolved over time.

    A socially distanced and masked staff meeting
  • Did COVID-19 Restrictions on Restaurants and Bars Save Lives?

    COVID-19 restrictions on restaurants, bars, gyms and salons were among the most controversial and the last to be lifted. A new study looks at whether closures, capacity restrictions, and other limits on these businesses actually lowered the death rate.

    Blooms Tavern in New York City in May 2021. Photo: Nina Westervelt/Bloomberg via Getty Images.
  • Study: Rising Seas Aren’t Causing Coastal Property Values to Decline

    Climate change is causing sea levels to rise, threatening expensive waterfront properties. But according to a new study co-authored by Yale SOM’s Matthew Spiegel, prices are not falling in the areas most likely to be affected.

    A row of coastal houses
  • Study Shows Which Restrictions Prevent COVID-19 Fatalities—and Which Appear to Make Things Worse

    New research from Yale SOM’s Heather Tookes and Matthew Spiegel finds that mask mandates, closing restaurants, and stay-at-home orders are all effective at saving lives, but other commonly used measures can actually worsen the spread of the pandemic.

    A sign reading "everyone is required to wear a mask" at Playland’s Castaway Cove, an amusement park in Ocean City, New Jersey, in September 2020. Photo: Alexi Rosenfeld/Getty Images.
  • What’s Next for Alibaba? 

    The giant China-based conglomerate Alibaba raised more than $13 billion in November in a stock offering on the Hong Kong Stock Exchange. We asked Yale SOM’s Heather Tookes and Matthew Spiegel, who have studied the performance of companies after IPOs, what their research suggests about Alibaba’s prospects and its next steps.

    The Alibaba Group’s listing ceremony at the Hong Kong Stock Exchange on November 26, 2019. Photo: AP Photo/Kin Cheung.
  • Don’t Be Surprised by Uber’s Low-Priced IPO—It’s a Sign of Challenges to Come

    According to Yale SOM’s Matthew Spiegel and Heather Tookes, an IPO is often followed by disappointing returns, not just for the newly public company but its entire industry.

    Uber CEO Dara Khosrowshahi, center, at the New York Stock Exchange during the company’s IPO on Friday, May 10. Photo: Michael Nagle/Bloomberg via Getty Images.
  • How Does an IPO Affect Rival Firms?

    The initial public offering (IPO) market recently saw its busiest week since 2001. A new study by Yale School of Management professors Matthew Spiegel and Heather Tookes reveals how these and other IPOs affect rival firms over time.