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  1. kalenjin shared this story from Visual Capitalist.

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    Cities Ranked by Annual Hours of Sunshine

    World Cities Ranked by Average Annual Sunshine Hours

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    While we all see the same sky, we see it a bit differently depending on where we stand.

    For those in the planet’s most extreme regions, the sun doesn’t follow the same pattern of seasons as it does in more temperate regions.

    Today’s visualization comes from Sleepopolis and summarizes the top cities on each continent that receive the most and least annual sunshine hours.

    Ranked: Cities with the Least and Most Sunshine Hours

    While the graphic groups the top five cities from each continent, the tables below highlight the top 10 cities from around the world that boast the highest and lowest annual sunshine hours.

    Top 10 Cities

  2. kalenjin shared this story from AllAboutAlpha: Alternative Investing Trends and Analysis.

    A new paper in the Journal of Economics and Business presents data on merger arb, and which factors, especially sector size and individual fund size, do or do not have an impact on the alpha available in the pursuit of this strategy. For a given time period, the total dollar amountRead More
  3. kalenjin shared this story from Visual Capitalist.

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    Visualizing the Massive Cost of Cybercrime

    View the high resolution of this infographic by clicking here.

    What do Equifax, Yahoo, and the U.S. military have in common? They’ve all fallen victim to a cyberattack at some point in the last decade—and they’re just the tip of the iceberg.

    Today’s infographic from Raconteur delves into the average damage caused by cyberattacks at the organizational level, sorted by type of attack, industry, and country.

    Rising Cybercrime Costs Across the Board

    The infographic focuses on data from the latest Accenture “Cost of Cybercrime” study, which details how cyber threats are evolving in a fast-paced digital landscape.

    Overall, the average

  4. kalenjin shared this story from Quartz.

    A man climbs up stairs in the Triana city quarter of the Andalusian capital of Seville

    Who do you think would become more successful: a young scientist who received an important grant early in her career or one who just missed out on receiving that same grant?

    This question might seem like “a no-brainer,” says Dashun Wang, an associate professor of management and organizations at the Kellogg School. Many of us assume that success breeds success—and that failure, especially an early career setback, is a sign of more trouble to come.

    Then again, those who subscribe to the adage that “what doesn’t kill you makes you stronger” might suspect that the unsuccessful scientists actually benefited from their early setback.

    “The idea that one gets stronger through failure is the kind of stiff advice that people may tell themselves in difficult times,” says Kellogg strategy professor Benjamin F. Jones. “But is there any truth to it?”

    A new paper from Wang, Jones, and Kellogg postdoctoral researcher Yang Wang finds that the optimists are right: early failure can actually breed later success. Scientists who narrowly missed out on an important grant from the National Institutes of Health (NIH) ended up publishing more successful papers than those who narrowly qualified for the grant. Over the long run, “the losers ended up being better,” Wang says.

    The team’s analysis

  5. kalenjin shared this story from The Big Picture.

    How Jim Simons Built the Best Hedge Fund Ever
    The former code breaker and math professor figured out how to do one thing very well in markets.
    Bloomberg, October 28, 2019





    I feel like I have been keeping a secret for a long time that I can finally share: Over the long Labor Day Weekend, I read the galley of Wall Street Journal reporter Greg Zuckerman‘s new book, The Man Who Solved the Market: How Jim Simons Launched the Quant Revolution.

    I devoured the book in one sitting, it was a terrific and enjoyable read.

    I had been very much looking forward to this book coming out. Jim Simons has been a man of intrigue for like, forever. When I was an incoming Applied Math + Physics major at SUNY Stony Brook,1  he was the outgoing Math department chairman.

    For the next few decades, I followed his career. He was an enigma, both

  6. kalenjin shared this story from Alpha Architect.

    The Size Premium in Equity Markets: Where Is the Risk?

    • Stefano Ciliberti, Emmanuel Sérié, Guillaume Simon, Yves Lempérière, and Jean-Philippe Bouchaud
    • Journal of Portfolio Management
    • A version of this paper can be found here
    • Want to read our summaries of academic finance papers? Check out our Academic Research Insightcategory

    The size premium is one of the factors that we have researched and dug into several times on the blog. You can find just a few here, here, and here. This paper though took a fresh look at the size premium and adds a new perspective that we haven’t previously covered.

    What are the research questions?

    1. Given various approaches to measuring the “size” of a company, is the total amount of daily traded dollars in a stock (ADV)(1) a better proxy for risk than SMB?
    2. Is CMH (“cold minus hot”) a better long term proxy for returns when compared to
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  • kalenjin shared this story from Quartz.

    A man washes his hands at a shopping mall in Ciudad Juarez

    It’s something most people do everyday, often without really thinking about it, but how you wash your hands can make a real difference to your health and the well-being of those around you.

    Washing your hands is the one most effective method to prevent cross-contamination which can cause the spread of illness and infections. And many research studies have shown how improvements in hand hygiene have resulted in reductions in illness.

    A look at research from around the world on the promotion of washing hands with soap, found that such interventions resulted in a 30% reduction in diarrhea episodes and respiratory illnesses such as colds. Hand hygiene interventions at elementary schools in the US similarly helped to reduce sick days associated with acute gastrointestinal illness by 31%.

    The impact of good hand hygiene is even greater among people that have an increased risk of infection. A ...

  • kalenjin shared this story from Quartz.

    Wu Yanhua, vice chairman of China's national space agency, at a press in January.

    Attendees hoping to hear from the world’s busiest space power were disappointed after a Chinese space official didn’t show at the International Astronautical Congress (IAC), a 70-year-old space conference.

    In 2018, China launched more missions to orbit than any other nation, and it looks likely to do so again in 2019. But at a discussion between the heads of the world’s leading space agencies, Wu Yanhua, the vice chairman of the China National Space Administration (CNSA), was not present.

    “I miss an important space agency in this panel. Where is China?” read the most popular crowd-sourced question displayed in enormous type above the assembled space dignitaries.

    Pascale Ehrenfreund, the head of the German space agency, blamed Yanhua’s absence on a scheduling conflict. That’s difficult to believe, given that the annual conference is planned years in advance. Later, Jan Woerner, the head of the European Space Agency, told Quartz that he believed Yanhua was unable to obtain a visa to enter the United States.

    “It’s not nice for me, because I’m always looking forward to interactions with all states worldwide, so I’m

  • kalenjin shared this story from FlowingData.

    On Multiple Views, the Interactions Lab talks about their experience as a design studio and how quickly implementations can change when you introduce real data into the system:

    It’s easy to assume that the tools and approaches used for general software design apply equally to data visualization design. But data visualization design and interface design are often deeply and fundamentally distinct from one another. We learned this the hard way when we turned our research lab into a collaborative data visualization design studio for a few years. Data permeates visualization interfaces in ways that pose challenges at every stage of the design process. These challenges are even greater within large visualization teams. By reflecting on and articulating these challenges, we hope to inspire new, powerful data visualization design tools and communication processes.

    Always start with real data. You’re wasting your time otherwise.

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  • kalenjin shared this story from TED Talks Daily (SD video).

    The danger of artificial intelligence isn't that it's going to rebel against us, but that it's going to do exactly what we ask it to do, says AI researcher Janelle Shane. Sharing the weird, sometimes alarming antics of AI algorithms as they try to solve human problems -- like creating new ice cream flavors or recognizing cars on the road -- Shane shows why AI doesn't yet measure up to real brains.

    Download video: