Thursday, May 29, 2014

Confirmation bias

Abstract from paper: 'Using data from actual auditions in an individual fixed-effects framework, we find that the screen increases by 50% the probability a woman will be advanced out of certain preliminary rounds. The screen also enhances, by severalfold, the likelihood a female contestant will be the winner in the final round. Using data on orchestra personnel, the switch to blind' auditions can explain between 30% and 55% of the increase in the proportion female among new hires and between 25% and 46% of the increase in the percentage female in the orchestras since 1970.'

My impression of the results: it seems that female musicians were and are genuinely less likely to be top performers (otherwise blind auditions would result in proportionate representation), but also that the magnitude of the difference was exaggerated in the minds of those evaluating--as if confirmation bias were playing a role in the evaluation of individual candidates. It wouldn't surprise me if a similar confirmation bias effect were in play in the software industry.

--
Deck thyself now with majesty and excellency; and array thyself with glory and beauty.
Cast abroad the rage of thy wrath: and behold every one that is proud, and abase him.
Look on every one that is proud, and bring him low; and tread down the wicked in their place.
Hide them in the dust together; and bind their faces in secret.
Then will I also confess unto thee that thine own right hand can save thee.

I could not love thee, dear, so much,
Loved I not Honor more.

Tuesday, May 20, 2014

Mormon culture and RMs

In response to this article:

I don't know if I would tell someone to take "RM" off their checklist. After all, you only get one shot at marriage (in the general case), and I fully support your right to not marry anyone you don't want to marry for any reason at all, if you are willing to pay the price. But I would encourage boys and girls to be kind to those whom they do not intend to marry, and I would also encourage them to think hard about exactly which qualities they are willing to pay for in the currency of mate-selection, which is loneliness, self-doubt, and delayed fulfillment. Judge as you are willing to be judged.

-Max

--
Deck thyself now with majesty and excellency; and array thyself with glory and beauty.
Cast abroad the rage of thy wrath: and behold every one that is proud, and abase him.
Look on every one that is proud, and bring him low; and tread down the wicked in their place.
Hide them in the dust together; and bind their faces in secret.
Then will I also confess unto thee that thine own right hand can save thee.

I could not love thee, dear, so much,
Loved I not Honor more.

Tuesday, May 13, 2014

Communist Cuba


"Tourists tip waiters, taxi drivers, tour guides, and chambermaids in hard currency, and to stave off a revolt from these people, the government lets them keep the additional money, so they're "rich" compared with everyone else. In fact, they're an elite class enjoying privileges—enough income to afford a cell phone, go out to restaurants and bars, log on to the Internet once in a while—that ordinary Cubans can't even dream of. I asked a few people how much chambermaids earn in tips, partly so that I would know how much to leave on my dresser and also to get an idea of just how crazy Cuban economics are. Supposedly, the maids get about $1 per day for each room. If they clean an average of 30 rooms a day and work five days a week, they'll bring in $600 a month—30 times what everyone else gets. "All animals are equal," George Orwell wrote in Animal Farm, his allegory of Stalinism, "but some animals are more equal than others." Only in the funhouse of a Communist country is the cleaning lady rich compared with the lawyer. Yet elite Cubans are impoverished compared with the middle class and even the poor outside Cuba."

--
Deck thyself now with majesty and excellency; and array thyself with glory and beauty.
Cast abroad the rage of thy wrath: and behold every one that is proud, and abase him.
Look on every one that is proud, and bring him low; and tread down the wicked in their place.
Hide them in the dust together; and bind their faces in secret.
Then will I also confess unto thee that thine own right hand can save thee.

I could not love thee, dear, so much,
Loved I not Honor more.

Saturday, May 10, 2014

Subtlety and the Indirect Approach

Cool story.

By the early 1980s, Van Halen had become one of the biggest rock bands in history. Their touring contract carried a 53-page rider that laid out technical and security specs as well as food and beverage requirements. The "Munchies" section demanded potato chips, nuts, pretzels and "M&M's (WARNING: ABSOLUTELY NO BROWN ONES)."

When the M&M clause found its way into the press, it seemed like a typical case of rock-star excess, of the band "being abusive of others simply because we could," Mr. Roth said. But, he explained, "the reality is quite different."

Van Halen's live show boasted a colossal stage, booming audio and spectacular lighting. All this required a great deal of structural support, electrical power and the like. Thus the 53-page rider, which gave point-by-point instructions to ensure that no one got killed by a collapsing stage or a short-circuiting light tower. But how could Van Halen be sure that the local promoter in each city had read the whole thing and done everything properly?

Cue the brown M&M's. As Roth tells it, he would immediately go backstage to check out the bowl of M&M's. If he saw brown ones, he knew the promoter hadn't read the rider carefully—and that "we had to do a serious line check" to make sure that the more important details hadn't been botched either.

--
Deck thyself now with majesty and excellency; and array thyself with glory and beauty.
Cast abroad the rage of thy wrath: and behold every one that is proud, and abase him.
Look on every one that is proud, and bring him low; and tread down the wicked in their place.
Hide them in the dust together; and bind their faces in secret.
Then will I also confess unto thee that thine own right hand can save thee.

I could not love thee, dear, so much,
Loved I not Honor more.

Subtlety and the Indirect Approach

Cool story.

By the early 1980s, Van Halen had become one of the biggest rock bands in history. Their touring contract carried a 53-page rider that laid out technical and security specs as well as food and beverage requirements. The "Munchies" section demanded potato chips, nuts, pretzels and "M&M's (WARNING: ABSOLUTELY NO BROWN ONES)."

When the M&M clause found its way into the press, it seemed like a typical case of rock-star excess, of the band "being abusive of others simply because we could," Mr. Roth said. But, he explained, "the reality is quite different."

Van Halen's live show boasted a colossal stage, booming audio and spectacular lighting. All this required a great deal of structural support, electrical power and the like. Thus the 53-page rider, which gave point-by-point instructions to ensure that no one got killed by a collapsing stage or a short-circuiting light tower. But how could Van Halen be sure that the local promoter in each city had read the whole thing and done everything properly?

Cue the brown M&M's. As Roth tells it, he would immediately go backstage to check out the bowl of M&M's. If he saw brown ones, he knew the promoter hadn't read the rider carefully—and that "we had to do a serious line check" to make sure that the more important details hadn't been botched either.

--
Deck thyself now with majesty and excellency; and array thyself with glory and beauty.
Cast abroad the rage of thy wrath: and behold every one that is proud, and abase him.
Look on every one that is proud, and bring him low; and tread down the wicked in their place.
Hide them in the dust together; and bind their faces in secret.
Then will I also confess unto thee that thine own right hand can save thee.

I could not love thee, dear, so much,
Loved I not Honor more.