Showing posts with label confirmation bias. Show all posts
Showing posts with label confirmation bias. Show all posts
April 15, 2019
Sir you write “Just as with any other computer system, the adage “garbage in, garbage out” applies to AI. If systems are trained using historical data, they will reproduce historical biases.”“Guidelines are a welcome step towards ethical AI” April 15.
Not necessarily so. Currently because human regulators suffer from something known as confirmation bias, they introduced risk weighted capital requirements for banks based on that what is perceived as risky is more dangerous to our bank systems than what is perceived as safe. The analysis of historical data about the origin of bank crises would clearly have shown this to be totally wrong.
@PerKurowski
March 01, 2019
My tweet on why the world is becoming a much angrier place than what’s warranted by the usual factors.
Sir, Chris Giles writes “Britain is an angry place: furious about its politics, unsure of its place in the world and increasingly resigned to a grinding stagnation of living standards” “Anger and inequality make for a heady mix” March 1.
Giles analyzes the increasing discontent as a function of the economy, in terms of economic growth, inflation, income inequality, weak productivity and employment rates, whether existing or expected.
That is certainly valid but, sadly and worrisome, there is much more to the much higher levels of anger brewing than could seem be warranted by that. That goes also for the rest of the world.
Sir, what is happening? Here is my own tweet-sized explanation of that.
“Shameless polarization and redistribution profiteers, sending out their messages of hate and envy through social media, at zero marginal cost, are exploiting our confirmation bias, namely the want or need to believe what we hear, up to the tilt. It will all end very badly.”
@PerKurowski
February 03, 2019
Lie Detectors, many journalists would also benefit from lessons on fake news.
Sir, Simon Kuper describes the experiences of Belgian journalist Valentin Dauchot when dispatched to discuss fake news with classes of 10 and 11-years-old in Europe. Lie Detectors, a Brussels-based NGO that sends journalists to do that, finds that “children are often internet-savvier than teachers, and probably more so than old people”. “A lesson in fake news”, February 2.
Sir, I wonder how those children would classify the following information:
“Since your teachers have decided that dark forests are much more dangerous for all of you to enter, than staying out playing in an open field, anyone of you who enters the darkness of such forest, will be forced to eat broccoli and spinach for a full month. Anyone of you staying in the sunlight of the open field, will be rewarded with chocolate cake and ice cream each day for a whole month”. True or fake?
The children would respond: “Of course we wish it was true of course but, unfortunately, it has to be fake. Who would give us chocolate and ice cream for staying where we want to be, and spinach and broccoli for not entering what we already find to be scary?
Correspondingly, how would adults respond when they hear that regulators have risk weighted the capital requirements for banks, allowing these to hold much less of it against safe assets than against risky assets?
Most adults would say surely “True” “Great!”, and this even if anyone who has read anything about bank crises know well that the worst of these always result from excessive exposures to something ex ante perceived as very safe but that, ex post, turns out to be very risky, e.g. AAA rated securities.
Of course bankers, in this case being the children, cannot believe their luck with such fake regulations being decreed true by the Basel Committee. Imagine, earning the highest risk adjusted returns on equity on what’s perceived as safe! Imagine being able to hold much less equity against what we most love to hold, which of course leaves much more for bonuses to us!
Sir, how could Lie detectors help the adults, including of course journalists, like many in FT, to be more alert to the truthfulness of news and regulations? A good place to start would be with a full explanation of confirmation bias… that here resulting from most loving much too much the populist message of: “We have risk weighted the bank capital requirements for you so as to make these safer”
@PerKurowski
January 24, 2017
Financial protectionism could be just as bad or even worse than trade protectionism
Sir, I refer to the so plentiful anti-trade-protectionism writings, in FT and everywhere, and which all warn about the dangers of what Big Bad Donald Trump is up to. Many of these, not all, are solidly argued. Yet these contrast so much with the almost absolute silence against the financial protectionism that is imbedded in current bank regulations.
The risk weighted capital requirements for banks allow banks to leverage more with assets perceived, decreed or concocted as safe, than with assets perceived as risky. That means banks will earn higher risk adjusted returns on equity on the “safe” than on the “risky; so banks will favor with credit or investments what’s safe over what’s risky.
Is this not how it always is. Yes but before the introduction of these capital requirements the perceived risk was cleared for by the size of the exposure and the risk premiums charged. Now when capital requirements are also based on the same perceived risks, the effect of these in the allocation of bank credit to the real economy are augmented and so distort.
Here are some risk-weights of Basel II. Sovereign=0%, AAArisktocracy=20%, residential housing=35%, not rated “We the People”, like SMEs=100%, below BB-rated=150%.
Those who do not see how those with lower risk weights have their access to bank credit protected, against that of the risky, are not interested, dumb or trapped, almost irreversibly, by the mother of all confirmation biases.
@PerKurowski
November 18, 2010
If only the Basel Committee had known more about behaviouralism
Sir, Ken Fisher writes: “Humans hate losses more than twice as much as they love gains – a 10 percent loss feels as bad as a 25 percent gain feels good. That´s proven behaviouralism”, “Gridlocked governments are good news for equity”, November 18.
Of course he is right. How sad the bank regulators in the Basel Committee did not consider this when they designed their capital requirements which require higher capital for lending when the perceived risk of default are high, and allows for much lower capital for lending when the perceived risks of default are low. Of course, those regulations, only lent further impetus to the creation of a bank crisis, those which always result from excessive lending to what is perceived as having a low risk, and never result from excessive lending to what is perceived as having no risk.
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