andrew_gelman_stats andrew_gelman_stats-2011 andrew_gelman_stats-2011-742 knowledge-graph by maker-knowledge-mining
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Introduction: I keep encountering the word “Groupon”–I think it’s some sort of pets.com-style commercial endeavor where people can buy coupons? I don’t really care, and I’ve avoided googling the word out of a general animosity toward our society’s current glorification of get-rich-quick schemes. (As you can tell, I’m still bitter about that whole stock market thing.) Anyway, even without knowing what Groupon actually is, I enjoyed this blog by Kaiser Fung in which he tries to work out some of its economic consequences. He connects the statistical notion of counterfactuals to the concept of opportunity cost from economics. The comments are interesting too.
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1 I keep encountering the word “Groupon”–I think it’s some sort of pets. [sent-1, score-0.601]
2 I don’t really care, and I’ve avoided googling the word out of a general animosity toward our society’s current glorification of get-rich-quick schemes. [sent-3, score-1.126]
3 (As you can tell, I’m still bitter about that whole stock market thing. [sent-4, score-0.646]
4 ) Anyway, even without knowing what Groupon actually is, I enjoyed this blog by Kaiser Fung in which he tries to work out some of its economic consequences. [sent-5, score-0.778]
5 He connects the statistical notion of counterfactuals to the concept of opportunity cost from economics. [sent-6, score-0.962]
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same-blog 1 0.99999988 742 andrew gelman stats-2011-06-02-Grouponomics, counterfactuals, and opportunity cost
Introduction: I keep encountering the word “Groupon”–I think it’s some sort of pets.com-style commercial endeavor where people can buy coupons? I don’t really care, and I’ve avoided googling the word out of a general animosity toward our society’s current glorification of get-rich-quick schemes. (As you can tell, I’m still bitter about that whole stock market thing.) Anyway, even without knowing what Groupon actually is, I enjoyed this blog by Kaiser Fung in which he tries to work out some of its economic consequences. He connects the statistical notion of counterfactuals to the concept of opportunity cost from economics. The comments are interesting too.
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Introduction: Very freakonomic (and I mean that in the best sense of the word).
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Introduction: No joke. See here (from Kaiser Fung). At the Statistics Forum.
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Introduction: Answer here (courtesy of Kaiser Fung).
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Introduction: Business statistician Kaiser Fung just came out with another book, this one full of stories about how organizations use data: 1. Why do law school deans send each other junk mail? 2. Can a new statistic make us less fat? 3. How can sellouts ruin a business? 4. Will personalizing deals save Groupon? 5. Why do marketers send you mixed messages? 6. Are they new jobs if no one can apply? 7. How much did you pay for the eggs? 8. Are you a better coach or manager? Unlike most books of this sort, there’s no hero: These are not stories about a fabulous businessman who made millions of dollars by following his dream and taking the customer seriously, nor are they Gladwellian sagas of brilliant scientists, nor are they auto-Gladwellian tales of the Ariely variety. In some ways, the stories in Fung’s book have the form of opened-up business reporting, in which you get to see the statistical models underlying various assumptions and conclusions. In that sense, this b
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same-blog 1 0.93154836 742 andrew gelman stats-2011-06-02-Grouponomics, counterfactuals, and opportunity cost
Introduction: I keep encountering the word “Groupon”–I think it’s some sort of pets.com-style commercial endeavor where people can buy coupons? I don’t really care, and I’ve avoided googling the word out of a general animosity toward our society’s current glorification of get-rich-quick schemes. (As you can tell, I’m still bitter about that whole stock market thing.) Anyway, even without knowing what Groupon actually is, I enjoyed this blog by Kaiser Fung in which he tries to work out some of its economic consequences. He connects the statistical notion of counterfactuals to the concept of opportunity cost from economics. The comments are interesting too.
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Introduction: Kaiser asks the interesting question: How do you measure what restaurants are “overrated”? You can’t just ask people, right? There’s some sort of social element here, that “overrated” implies that someone’s out there doing the rating.
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Introduction: Kaiser Fung tells what it’s really like . Here’s a sample: As soon as I [Kaiser] put the substring-concatenate expression together with two lines of code that generate data tables, it choked. Sorta like Dashiell Hammett without the broads and the heaters. And here’s another take, from a slightly different perspective.
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Introduction: Kaiser Fung discusses . It’s a good sign when statistical graphics are so popular that people feel the need to fake them!
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Introduction: Kaiser nails it . The offending article , by John Tierney, somehow ended up in the Science section rather than the Opinion section. As an opinion piece (or, for that matter, a blog), Tierney’s article would be nothing special. But I agree with Kaiser that it doesn’t work as a newspaper article. As Kaiser notes, this story involves a bunch of statistical and empirical claims that are not well resolved by P.R. and rhetoric.
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Introduction: I haven’t linked to the Baby Name Wizard in awhile. . . . Laura Wattenberg takes a look at the question , “Does a hard-to-pronounce baby name hurt you?” Critical thinking without “debunking”—this is the way to go.
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Introduction: When Sonia Sotomayor was nominated for the Supreme Court, and there was some discussion of having 6 Roman Catholics on the court at the same time, I posted the following historical graph: It’s time for an update: It’s still gonna take awhile for the Catholics to catch up. . . . And this one might be relevant too: It looks as if Jews and men have been overrepresented, also Episcopalians (which, as I noted earlier, are not necessarily considered Protestant in terms of religious doctrine but which I counted as such for the ethnic categorization). Religion is an interesting political variable because it’s nominally about religious belief but typically seems to be more about ethnicity.
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Introduction: It probably got caught in the spam filter. We get tons and tons of spam (including the annoying spam that I have to remove by hand). If your comment was accompanied by an ad or a spam link, then maybe I just deleted it.
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Introduction: Good stuff , as always, from Laura Wattenberg.
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Introduction: My econ dept colleague Joseph Stiglitz suggests that financial fraudsters be sent to prison. He points out that the usual penalty–million-dollar fines–just isn’t enough for crimes whose rewards can be in the hundreds of millions of dollars. That all makes sense, but why do the options have to be: 1. No punishment 2. A fine with little punishment or deterrent value 3. Prison. What’s the point of putting nonviolent criminals in prison? As I’ve said before , I’d prefer if the government just took all these convicted thieves’ assets along with 95% of their salary for several years, made them do community service (sorting bottles and cans at the local dump, perhaps; a financier should be good at this sort of thing, no?), etc. If restriction of personal freedom is judged be part of the sentence, they could be given some sort of electronic tag that would send a message to the police if you are ever more than 3 miles from your home. And a curfew so you have to stay home bet
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