Skip to main content

A conversation with Tyler Cowen

Conversation with Tyler podcast interview. Perhaps predictably, the most challenging interview / podcast I've ever done. Video here  and embed below 


Update:

My comments on efficient markets and active management provoked a lot of email. 

I mentioned Jonathan Berk, and should have mentioned his coauthors Rick Green and Jules Van Binsbergen, on how active management can persist even though investors don't make any money on it. The basic idea is really clever:  A manager has 5% alpha skill on $10 milllion, i.e. he can earn $500k, but the skill does not scale. So he earns 5%, charges 1% fee, investors get 4%.  Investors see his great performance and rush in.  Now he has $50 million assets under management. He still earns $500k. He charges 1% fee, and investors get zero alpha. It’s equilibrium – if investors leave,  alpha to investors goes up again, and they return. Investors are earning the same zero alpha they get on the index so why not. And that’s about what we see. Fees persist in equilibrium, fees are equal to alpha on average, alpha post fees are about zero, flows follow performance. The seminal paper is "Mutual Fund Flows and Performance in Rational Markets" Jonathan B. Berk, Richard C. Green  Journal of Political Economy 2004  112 1269-1295 and a series following, here . It's not a perfect theory, but the glass is nearer full than empty, and it's a lovely supply and demand starting place to understand an industry that persists for decades. 

More generally, the average fund earns no alpha, almost guaranteed by free entry. The trouble is distinguishing the good ones from the bad ones, on ex-ante characteristics. The filters used by academics are pretty weak -- past returns, ratings, education of principals etc. On the other hand, now we just move it all up to the meta-game. Picking managers is no different than picking stocks. Skill on skill, alpha on alpha, fees on fees...

Comments

Popular posts from this blog

Chinese Traders Still a Major Influence the Crypto Market, According to Experts Bitcoin

  Chinese bitcoin traders still exert a major influence in the cryptocurrency market, even with all the distinct issues they must now face to operate. This is the opinion of several experts in the field that have weighed in on how the recent prohibitions and ban proposals from China are really affecting how Chinese bagholders that conduct their business in Asian and worldwide exchanges. Chinese Traders Still Big in the Market Chinese traders still have a big influence on how crypto markets move even with all of the difficulties they have to operate, according to different experts with knowledge about how Asian markets work. Even sidestepping all of the government regulations, these traders are still managing to do business, taking advantage of gray markets and other services that let them exchange the local currency for crypto. News of China invoking strict warnings toward cryptocurrency trading and initial coin offerings (ICOs) are not new: China has warned against these activities si

UK Bans 'Time to Buy' Bitcoin Ads on Buses and Underground for Being Misleading

 The British Advertising Standards Authority (ASA) has banned a bitcoin ad campaign put up across the London Underground network and on London buses by cryptocurrency exchange Luno. The UK advertising regulator says the ads are misleading and irresponsible. ‘Time to Buy Bitcoin’ Ads Banned in the UK A bitcoin advertising campaign put up across London Underground and on buses has been banned by the U.K. Advertising Standards Authority (ASA). The ads contained an image of a bitcoin with the words “If you’re seeing bitcoin on a bus, it’s time to buy” or “If you’re seeing bitcoin on the Underground, it’s time to buy.” They were put up in February. The ASA said it received four complaints. Three complainants “believed the ad failed to illustrate the risk of the investment” and “challenged whether it was misleading.” One complainant “challenged whether the ad took advantage of consumers’ inexperience or credulity,” the regulator detailed. “We considered that consumers would interpret the sta

Chinese Firm Bitcoin Mining Invests $9M to Build 100 Megawatt Bitcoin Farm in Kazakhstan

  Shenzhen-based Bitcoin Mining is planning to construct and operate a 100 MW crypto-mining data center in Kazakhstan. The project will be implemented in partnership with two local companies that will also provide the enterprise with an array of services. The total amount of the investment will exceed $9 million. Kazakhstan to Host New 100 MW Crypto Mining Facility Bit Mining announced this week it has entered into a binding investment term sheet with a Kazakhstani entity. The two companies will cooperate on the construction of a new crypto mining facility in the Central Asian republic. The Chinese firm will have an 80% equity interest in the new Kazakhstan Mining Data Center, with the remaining 20% held by its local partner. Chinese Company Bit Mining to Build $9 Million Bitcoin Farm in Kazakhstan The bitcoin farm will launch with a power capacity of 20 MW and when fully operational it’s expected to reach a total capacity of 100 MW. Bit Mining said it’s going to invest 60 million Chin