Managerial Econ

Economic Analysis of Business Practice

Tuesday, August 31, 2021

Differences-in-DIfferences explained, albeit with a macroeconomics example

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Another great video from MRU.  Teaches students how to "create" natural experiments using non-experimental data.   To complement ...
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Costco's profit comes mostly from membership fees

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  In 2018, Costco's profit was equal to its membership fees .  In 2020 membership fees were 87% of profit.  These barely profitable pric...
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Odds of dying from break-through Covid vs. other risks

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Monday, August 30, 2021

Vaccine inequality

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From The Economist : By late August 2021 around 60% of people in higher-income countries had received at least one dose of a vaccine. In p...
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Why would an air traffic controller deliberately put two planes on a collision course?

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In 1974, it became more difficult for air traffic controllers to qualify for "burn out" disability insurance.  They needed some ha...
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China gives the poor a bigger slice of the proverbial pie, but if it affects incentives...

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...it will also make the pie smaller.   The Economist reports on the efforts of the Chinese government to redistribute income from rich to ...
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Should physicians be bill collectors?

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On the upside, physicians would see the bills as their patients see them, which would remind them of the tradeoffs associated with expensive...
Thursday, August 26, 2021

"Them Geezers is Bleedin' us Dry"

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... or so claims a colleague of mine. He was referring specifically to their staunch defense of increased medicare spending. He might have ...
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Tuesday, August 24, 2021

How did our underfunded public pensions do during the pandemic?

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Previous posts have focused on the  underfunding of public pension s caused by unrealistically high discount rates, e.g., 7%.  For these ...
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Trust only 1/3 of the results from Pscyhology, but 2/3 of the results from behavioral economics

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Dan Ariely (psychologist and behavioral economist) was forced to retract a well-cited paper based on fraudulent data . Ariely, a frequent T...
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