Skier Outjumps Avalanche

Posted this earlier over on Posterous, but here it is again: Skier outjumps avalanche.

Field Notes: IPOs, Aliens, GDP, Entrepreneurs, Degrees, Vancouver, etc.

  • Global World Product Will Not Grow at 4%+ for Five Years (Source)
  • Mississippi river flood status (Source)
  • SETI to stop its alien-seeking radio dishes (Source)
  • WEF report on entrepreneurship (Source)
  • Foreign buyers buoy Vancouver housing (Source)
  • More Working Women Than Men Have College Degrees, Census Bureau Reports (Source)
  • Google will modify its Rio maps and downplay favelas (Source)
  • The Netherlands Ranks #1 Worldwide in Penetration for Twitter and LinkedIn (Source)
  • Mississippi River Cresting Near Record; 2002 as Parallel (Source)
  • IPO filing activity surges; more than 30 companies file with SEC in April ((Source)

Grantham: Days of Unlimited Resources and Falling Prices are Over

In his latest quarterly comment, Jeremy Grantham nails it. By way of personal context, here is a link to the overview of a related talk I gave at TED 2010. Sadly, the actual talk has never been posted online

GMO April

Fineberg on Neo-Evolution

This wasn’t quite dystopian enough for me, Harvey Fineberg on neo-evolution at this year’s TED was still interesting:

Field Notes: Cat Bonds, Playboy Disease, Rail, Oil, Liquidity, Hitchens, etc.

  • The Trouble with Catastrophe Bonds(Source)
  • Bacterium that causes Legionnaires disease linked to mystery illness at Playboy Mansion (Source)
  • “This Is the Renaissance of Rail.” (Source)
  • Imagining a world without oil (Source)
  • Liquidity as an Investment Style (Source)
  • US reserve rates soar as costs fall on new technologies (Source)
  • Amis on Hitchens: ‘He’s one of the most terrifying rhetoricians the world has seen’(Source)
  • “Reject Greenspan’s Bleak Vision” (Source)

Ian Morris on Why the West Rules

Ian Morris, author of one of my favorite books of 2010 — Why the West Rules, For Now — gave a seminar on the subject recently as part of the Long Now series. Highly worthy listening.

The Double-Rainbow of Powder-Skiing

You know that crazy-effusive double-rainbow video that went viral? Here, hands down, is the powder-skiing version. It’s serious embarra-stoke.

Field Notes: Yuan, Education, Cleantech, Housing, etc.

  • Educational Tech Gets a look from early-stage investors (Source)
  • Silicon Valley Cashes Out Selling Private Shares (Source)
  • Fastest China Appreciation in Five Months ahead (Source)
  • For VC’s, No More Chasing Magic Batteries (Source)
  • Where the housing bubble lives on (Source)

Vancouver Bubble Watch: 25-Person Bidding War

I was sent this by someone today on the latest madness in the Vancouver real estate market. It sort of blew my mind — 25 bidders, $655,000 premium, and 34% over the asking price for a house on 50×125 lot.

Kitsilano house goes for $655,000 over asking

Kitsilano, B.C.

Published Thursday, Apr. 21, 2011 6:02PM EDT

2466 WEST 14TH AVE., VANCOUVER

ASKING PRICE $1,895,000

SELLING PRICE $2.55-million

PREVIOUS SELLING PRICE $531,000 (1996)

DAYS ON THE MARKET eleven

THE ACTION: This contemporary West Coast residence in Kitsilano was listed for $1.895-million on a Friday, but the first showings were held a week later. This tactic, combined with its attractive price point, helped retain the interest of so many buyers that 25 made an offer. The one accepted presented $655,000 more than the asking price.

Predicting the Improbable

Great new paper from Voxeu on people’s behavior around the unpredictable. In lotteries they tend to under-select recently drawn numbers, only to get for them in a big way if the number is drawn repeatedly. Reproduced here, with permission.

 

Predicting the improbable

Claus Bjørn Jørgensen Sigrid Suetens Jean-Robert Tyran
22 April 2011

Japan’s trio of tsunami, earthquake, and nuclear disaster has left the world stunned. As this column points out, even the experts were shocked. But while these events were highly unlikely, they were still possible. This column uses evidence from the Danish lottery to show that people tend to adjust their expectations of future events based on only small pockets of recent experience, often at their cost.

Important events are hard to predict – a fact that is particularly hard-felt when it comes to low probability events with dramatic consequences. Nuclear catastrophe, financial crisis and the like are things that even experts struggle to predict. The difficulty stems from a lack of understanding of the underlying factors and complex interactions among causes (probabilities are not independent but conditional on other events).

Experts are thus to some extent forced to base their predictions on inference from observing the past. A difficult issue is to know when a model should be revised given that an event that has been deemed to be highly improbable happens to occur. The issue is most relevant for policy recommendations. For example, what recommendations should experts provide for the regulation of nuclear power in the wake of the Fukushima disaster or for the regulation of banks in the light of the recent financial crisis?

While experts struggle to predict such events accurately, the average person is often simply baffled. They tend to misperceive randomness in a variety of ways, especially when it comes to rare events.

  • One common tendency is to see patterns in random data when there are none.

This can lead to a tendency to overreact to recent events, allowing their occurrence to change beliefs about future events in exaggerated ways. More specifically, many people tend to over-infer characteristics of the underlying probability distribution when observing a small number of random events. A literature pioneered by Tversky and Kahneman (1971) has identified the belief in the “law of small numbers” as the source of such over-inference.

[Read more...]