University of California, Berkeley

Latest story

113 Shares199 Views

Hurricane Helene Deaths Will Continue for Years, Study Suggests

by

Research on hundreds of tropical storms finds that mortality keeps rising for more than a decade afterward, for reasons you might not expect.Over the past week, the official death toll from Hurricane Helene has surpassed 100 as the vortex creeping inland from Florida submerged homes and swept away cars. But the full weight of lost lives will be realized only years from now — and it could number in the thousands.A paper published in the journal Nature on Wednesday lays out the hidden toll of tropical storms in the continental United States. Looking at 501 events from 1930 to 2015, researchers found that the average tropical storm resulted in an additional 7,000 to 11,000 deaths over the 15 years that followed.Overall during the study period, tropical storms killed more people than automobile crashes, infectious diseases and combat for U.S. soldiers. It’s such a big number — especially compared with the 24 direct deaths caused by hurricanes on average, according to federal statistics — that the authors spent years checking the math to make sure they were right.“The scale of these results is dramatically different from what we expected,” said Solomon Hsiang, a professor of global environmental policy at the Doerr School of Sustainability at Stanford University, who conducted the study with Rachel Young, the Ciriacy-Wantrup postdoctoral fellow at the University of California, Berkeley.The pair used a technique that has also provided a more complete understanding of “excess deaths” caused by Covid-19 and heat waves. It works by looking at typical mortality patterns and isolating anomalies that could have been caused only by the variable under study — in this case, a sizable storm.Previously, researchers examined deaths and hospitalizations after hurricanes over much shorter periods. One study published in Nature found elevated hospitalizations among older Medicaid patients in the week after a storm. Another, in The Journal of the American Medical Association, associated higher death rates with U.S. counties hit by cyclones. A study in The Lancet found that across 14 countries, cyclones led to a 6 percent bump in mortality in the ensuing two weeks.Deaths from tropical storms in the U.S. have been spiking Fatalities connected to storms that struck as many as 15 years ago – measured as the number of deaths above what would otherwise be expected – are rising faster as storms increase in frequency.

Source: Solomon Hsiang and Rachel YoungBy The New York TimesWe are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

More stories

  • 113 Shares179 Views

    in Economy

    House Committee Targets U.C. Berkeley Program for China Ties

    by

    A House select committee is requesting more information about a university collaboration that it said could help China gain access to cutting-edge research.A congressional committee focused on national security threats from China said it had “grave concerns” about a research partnership between the University of California, Berkeley, and several Chinese entities, claiming that the collaboration’s advanced research could help the Chinese government gain an economic, technological or military advantage.In a letter sent last week to Berkeley’s president and chancellor, the House Select Committee on the Chinese Communist Party requested extensive information about the Tsinghua-Berkeley Shenzhen Institute, a collaboration set up in 2014 with China’s prestigious Tsinghua University and the Chinese city of Shenzhen.The letter pointed to the institute’s research into certain “dual-use technologies” that are employed by both civilian and military institutions, like advanced semiconductors and imaging technology used for mapping terrain or driving autonomous cars.The committee also questioned whether Berkeley had properly disclosed Chinese funding for the institute, and cited its collaborations with Chinese universities and companies that have been the subjects of sanctions by the United States in recent years, like the National University of Defense Technology, the telecom firm Huawei and the Chinese drone maker DJI.It also said that Berkeley faculty serving at the institute had received funding from the Defense Advanced Research Projects Agency and other U.S. funding for the development of military applications, raising concerns about Chinese access to those experts.In April, for example, a team from a Shenzhen-based lab that describes itself as being supported by the Tsinghua-Berkeley Shenzhen Institute said it had won a contest in China to optimize a type of advanced chip technology that the U.S. government is now trying to prevent Chinese companies from acquiring, the letter said.It is not clear what role the university had in that project, or if the partnership, or the institute’s other activities, would violate U.S. restrictions on China’s access to technology. In October, the United States set significant limits on the type of advanced semiconductor technology that could be shared with Chinese entities, saying that the activity posed a national security threat.“Berkeley’s P.R.C.-backed collaboration with Tsinghua University raises many red flags,” the letter said, referring to the People’s Republic of China. It was signed by Representative Mike Gallagher, a Wisconsin Republican who chairs the committee, and Representative Virginia Foxx, a Republican of North Carolina who is the committee chair on education and the work force.In a statement to The New York Times, U.C. Berkeley said it takes concerns about national security “very seriously” and was committed to comprehensive compliance with laws governing international academic engagement. “The campus is reviewing past agreements and actions involving or connected to Tsinghua-Berkeley Shenzhen Institute” and would “fully and transparently cooperate with any federal inquiries,” it said.The university also said it had responded to inquiries from the Department of Education with detailed information about gifts and contracts related to the institute, that it was committed to full compliance with laws governing such arrangements, and that it “follows the lead of Congress and federal regulators when evaluating proposed research relationships with foreign entities.”Universities have also emphasized that foreign governments might have little to gain from infiltrating such partnerships, since academic researchers are focused on fundamental research that, while potentially valuable, is promptly published in academic journals for all to see.“As a matter of principle, Berkeley conducts research that is openly published for the entire global scientific community,” the university said in its statement.The letter, and other accusations from members of Congress about U.S. universities with partners in China, underscores how a rapid evolution in U.S.-China relations is putting new pressure on academic partnerships that were set up to share information and break down barriers between the countries.The Chinese government has sought to improve the country’s technological capacity through legitimate commercial partnerships, but also espionage, cybertheft and coercion. Those efforts — along with a program to meld military and civilian innovation — has led to a backlash in the United States against ties with Chinese academic institutions and private companies that might have seemed relatively innocuous a decade ago.The select committee, which was set up earlier this year, describes its mission as building consensus on the threat posed by the Chinese Communist Party and developing a plan to defend the United States. The bipartisan committee, which is led by Republicans, can provide legislative recommendations but cannot legislate on its own. It has been busily naming and shaming major companies and others over ties to China in congressional hearings, investigations and letters.Tensions between the United States and China are high, and some lawmakers have called for decoupling the two economies. But severing academic ties is a tricky prospect. American universities are geared toward open and collaborative research and count many Chinese scholars among their work force. China’s significant technology industry and huge population of science and technology doctorates make it a natural magnet for many research collaborations.Still, the rapid expansion of export controls in the United States is putting more restrictions on the type of information and data related to advanced technologies that can be legally shared with individuals and organizations in China. Under the new rules, even carrying a laptop to China with certain chip designs on it, or giving a Chinese national a tour of an advanced U.S. chip lab, can violate the law.The House committee has requested that the university provide extensive documents and information by July 27 about the partnership, including its funding, structure and technological work, its alumni’s current and past affiliations, and its compliance with U.S. export controls. More

  • 150 Shares169 Views

    in Economy

    David Card, Joshua Angrist and Guido Imbens Win Nobel in Economics 2021

    by

    David Card has made a career of studying unintended experiments to examine economic questions — like whether raising the minimum wage causes people to lose jobs.Joshua D. Angrist and Guido W. Imbens have developed research tools that help economists use real-life situations to test big theories, like how additional education affects earnings.On Monday, their work earned them the 2021 Nobel Memorial Prize in Economic Sciences.All three winners are based in the United States. Mr. Card, who was born in Canada, works at the University of California, Berkeley. Mr. Angrist, born in the United States, is at the Massachusetts Institute of Technology, and Mr. Imbens, born in the Netherlands, is at Stanford University.“Sometimes, nature, or policy changes, provide situations that resemble randomized experiments,” said Peter Fredriksson, chairman of the prize committee. “This year’s laureates have shown that such natural experiments help answer important questions for society.”The recognition was bittersweet, many economists noted, because much of the research featured in the prize announcement was co-written by Alan B. Krueger, a Princeton University economist and former White House adviser who died in 2019. The Nobels are not typically awarded posthumously. Despite that note of sadness, the economics profession celebrated the news, crediting the winners for their work in changing the way that labor markets in particular are studied.“They ushered in a new phase in labor economics that has now reached all fields of the profession,” Trevon D. Logan, an economics professor at Ohio State, wrote on Twitter shortly after the prize was announced.Mr. Card’s work has challenged conventional wisdom in labor economics — including the idea that higher minimum wages led to lower employment. He was a co-author of influential studies on that topic with Mr. Krueger, including one that used the border between New Jersey and Pennsylvania to test the effect of a minimum wage change. Comparing outcomes between the states, the research found that employment at fast food restaurants was not negatively affected by an increase in New Jersey’s minimum wage.Mr. Card has also researched the effect of an influx of immigrants on employment levels among local workers with low education levels — again finding the impact to be minimal — and the effect of school resource levels on student education, which was larger than expected.“I’m sure that if Alan were still with us, that he would be sharing this prize with me,” Mr. Card said in a news conference, after recognizing Mr. Krueger’s contributions. He also noted that initially, when it came to the minimum wage study, “quite a few economists were quite skeptical of our results.”David Neumark, an economist at the University of California, Irvine, who co-wrote a paper contesting Mr. Card and Mr. Krueger’s findings in the minimum wage study, said he still thought the work had data issues — but added that there was no doubt that the methodology was important.“They’ve all done great work — they’ve changed the way that labor economists do research,” Mr. Neumark said of the three winners.Mr. Angrist and Mr. Krueger tried in the early 1990s to gauge how much benefit people derive from extra years of education. To figure it out, they took advantage of the fact that students born earlier in the year can legally leave school earlier than those born later in the year. Those born earlier tended to get less education and also earned less later on. The effect of an additional year of education, they estimated, was a 9 percent increase in income.That study helped spur the additional work on research methods that Mr. Angrist and Mr. Imbens later carried out. That contribution has reshaped the way researchers think about and analyze natural experiments, according to the Nobel committee.The pair showed that it was possible to identify a clear effect from an intervention in people’s behavior — like a subsidy that might encourage people to ride bicycles to work — even if a researcher could not control who took part in the experiment, and even if the impact varied across individuals. They also came up with a transparent framework for such research that has increased trust in it.“The challenge, for me, has always been trying to understand, when people do empirical work, what exactly the methodological challenges are,” Mr. Imbens said via telephone in a news conference for the announcement.Two American economists affiliated with Stanford, Paul R. Milgrom and Robert B. Wilson, won the 2020 Nobel in economics for improvements to auction theory. Abhijit Banerjee and Esther Duflo of M.I.T. and Michael Kremer of Harvard University won in 2019 for their experiment-based research in development economics.The award, formally called the Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel, has been given out since 1969.Because the award is announced in the middle of the night on the United States’ West Coast, two of this year’s recipients were woken up by phone calls from Sweden informing them of their prize.Mr. Imbens said he was asleep when he received the call from the prize committee — around 2 a.m. — and was “absolutely stunned” to hear the news. He said he was pleased to win it alongside friends, noting that Mr. Angrist was the best man at his wedding.Mr. Card thought that a friend of his — whom he identified only as Tim — was pulling a prank on him, he said.“But then the phone number actually was a Swedish phone number,” he said. More

  • 113 Shares129 Views

    in Economy

    Who Discriminates in Hiring? A New Study Can Tell.

    by

    Applications seemingly from Black candidates got fewer replies than those evidently from white candidates. The method could point to specific companies.Twenty years ago, Kalisha White performed an experiment. A Marquette University graduate who is Black, she suspected that her application for a job as executive team leader at a Target in Wisconsin was being ignored because of her race. So she sent in another one, with a name (Sarah Brucker) more likely to make the candidate appear white.Though the fake résumé was not quite as accomplished as Ms. White’s, the alter ego scored an interview. Target ultimately paid over half a million dollars to settle a class-action lawsuit brought by the Equal Employment Opportunity Commission on behalf of Ms. White and a handful of other Black job applicants.Now a variation on her strategy could help expose racial discrimination in employment across the corporate landscape.Economists at the University of California, Berkeley, and the University of Chicago this week unveiled a vast discrimination audit of some of the largest U.S. companies. Starting in late 2019, they sent 83,000 fake job applications for entry-level positions at 108 companies — most of them in the top 100 of the Fortune 500 list, and some of their subsidiaries.Their insights can provide valuable evidence about violations of Black workers’ civil rights.The researchers — Patrick Kline and Christopher Walters of Berkeley and Evan K. Rose of Chicago — are not ready to reveal the names of companies on their list. But they plan to, once they expose the data to more statistical tests. Labor lawyers, the E.E.O.C. and maybe the companies themselves could do a lot with this information. (Dr. Kline said they had briefed the U.S. Labor Department on the general findings.)In the study, applicants’ characteristics — like age, sexual orientation, or work and school experience — varied at random. Names, however, were chosen purposefully to ensure applications came in pairs: one with a more distinctive white name — Jake or Molly, say — and the other with a similar background but a more distinctive Black name, like DeShawn or Imani.What the researchers found would probably not surprise Ms. White: On average, applications from candidates with a “Black name” get fewer callbacks than similar applications bearing a “white name.”This aligns with a paper published by two economists from the University of Chicago a couple of years after Ms. White’s tussle with Target: Respondents to help-wanted ads in Boston and Chicago had much better luck if their name was Emily or Greg than if it was Lakisha or Jamal. (Marianne Bertrand, one of the authors, testified as an expert witness in the trial over Ms. White’s discrimination claim.)This experimental approach with paired applications, some economists argue, offers a closer representation of racial discrimination in the work force than studies that seek to relate employment and wage gaps to other characteristics — such as educational attainment and skill — and treat discrimination as a residual, or what’s left after other differences are accounted for.The Berkeley and Chicago researchers found that discrimination isn’t uniform across the corporate landscape. Some companies discriminate little, responding similarly to applications by Molly and Latifa. Others show a measurable bias.All told, for every 1,000 applications received, the researchers found, white candidates got about 250 responses, compared with about 230 for Black candidates. But among one-fifth of companies, the average gap grew to 50 callbacks. Even allowing that some patterns of discrimination could be random, rather than the result of racism, they concluded that 23 companies from their selection were “very likely to be engaged in systemic discrimination against Black applicants.”There are 13 companies in automotive retailing and services in the Fortune 500 list. Five are among the 10 most discriminatory companies on the researchers’ list. Of the companies very likely to discriminate based on race, according to the findings, eight are federal contractors, which are bound by particularly stringent anti-discrimination rules and could lose their government contracts as a consequence.“Discriminatory behavior is clustered in particular firms,” the researchers wrote. “The identity of many of these firms can be deduced with high confidence.”The researchers also identified some overall patterns. For starters, discriminating companies tend to be less profitable, a finding consistent with the proposition by Gary Becker, who first studied discrimination in the workplace in the 1950s, that it is costly for firms to discriminate against productive workers.The study found no strong link between discrimination and geography: Applications for jobs in the South fared no worse than anywhere else. Retailers and restaurants and bars discriminate more than average. And employers with more centralized personnel operations handling job applications tend to discriminate less, suggesting that uniform rules and procedures across a company can help reduce racial biases.An early precedent for the paper published this week is a 1978 study that sent pairs of fake applications with similar qualifications but different photos, showing a white or a Black applicant. Interestingly, that study found some evidence of “reverse” discrimination against white applicants.More fake-résumé studies have followed in recent years. One found that recent Black college graduates get fewer callbacks from potential employers than white candidates with identical resumes. Another found that prospective employers treat Black graduates from elite universities about the same as white graduates of less selective institutions.One study reported that when employers in New York and New Jersey were barred from asking about job candidates’ criminal records, callbacks to Black candidates dropped significantly, relative to white job seekers, suggesting employers assumed Black candidates were more likely to have a record.What makes the new research valuable is that it shows regulators, courts and labor lawyers how large-scale auditing of hiring practices offers a method to monitor and police bias. “Our findings demonstrate that it is possible to identify individual firms responsible for a substantial share of racial discrimination while maintaining a tight limit on the expected number of false positives encountered,” the researchers wrote.Individual companies might even use the findings to reform their hiring practices.Dr. Kline of Berkeley said Jenny R. Yang, a former chief commissioner of the E.E.O.C. and the current director of the Office of Federal Contract Compliance Programs, which has jurisdiction over federal contractors, had been apprised of the findings and had expressed interest in the researchers’ technique. (A representative of the agency declined to comment or to make Ms. Yang available.)Similar tests have been performed since the 1980s to detect discrimination in housing by real estate agents and rental property owners. Tests in which white and nonwhite people inquire about the availability of housing suggest discrimination remains rampant.Deploying this approach in the labor market has proved a bit tougher. Last year, the New York City Commission on Human Rights performed tests to detect employment discrimination — whether by race, gender, age or any other protected class — at 2,356 shops. Still, “employment is always harder than housing,” said Sapna Raj, deputy commissioner of the law enforcement bureau at the agency, which enforces anti-discrimination regulations.“This could give us a deeper understanding,” Ms. Raj said of the study by the Berkeley and Chicago researchers. “What we would do is evaluate the information and look proactively at ways to address it.”The commission, she noted, could not take action based on the kind of statistics in the new study on their own. “There are so many things you have to look at before you can determine that it is discrimination,” she argued. Still, she suggested, statistical analysis could alert her to which employers it makes sense to look at.And that could ultimately convince corporations that discrimination is costly. “This is actionable evidence of illegal behavior by huge firms,” Dr. Walters of Berkeley said on Twitter in connection with the study’s release. “Modern statistical methods have the potential to help detect and redress civil rights violations.” More