Friday, December 21, 2018

Thinking About Confidence Intervals: Horseshoes and Hand Grenades

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In a previous post, Confidence Intervals: Fad or Fashion I wrote about Dave Giles' post on interpreting confidence intervals. A primary ...
Saturday, October 20, 2018

Power and Sample Size Analysis in Applied Econometrics

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Recently I was thinking about a conversation from an episode of the  EconTalk podcast with Russ Roberts and John Ioannidis where the topic ...
Sunday, July 29, 2018

Performance of Machine Learning Models on Time Series Data

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In the past few years there has been an increased interest among economists in machine learning. For more discussion see here ,  here,   her...
Sunday, July 15, 2018

The Credibility Revolution(s) in Econometrics and Epidemiology

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I've written before about the credibility revolution in economics. It also seems that in parallel with econometrics, epidemiology has i...
Thursday, May 24, 2018

Statistical Inference vs. Causal Inference vs. Machine Learning: A motivating example

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In his well known paper, Leo Breiman discusses the 'cultural' differences between algorithmic (machine learning) approaches and tra...
Tuesday, April 17, 2018

He who must not be named....or can we say 'causal'?

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Recall in the Harry Potter series, the wizard community refused to say the name of 'Voldemort' and it got to the point where they al...
Sunday, March 18, 2018

Will there be a credibility revolution in data science and AI?

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Summary: Understanding where AI and automation are going to be the most disruptive to data scientists in the near term relates to understand...