Via one of my classmates, and the NPR Planet Money blog, the San Francisco Municipal Transportation Authority has started testing demand pricing for parking spaces:

The system will use electronic sensors to measure real-time demand for parking spaces, and adjust prices accordingly. When there are lots of empty spaces, it will be cheap to park. When spaces are hard to find, rates will be higher.

The range in prices will be huge: from 25 cents an hour to a maximum of $6 an hour, according to the San Francisco Municipal Transportation Authority.

Eventually, drivers will be able to find open parking spaces by going online, checking their mobile phones or reading for new electronic signs that will be posted throughout the city.

That's how to run a parking system. Not, as some might suspect, by leasing all the meters to a for-profit company which immediately raises prices to the point where people don't park on some streets at all any more.

My laptop screen saver showed this photo, so I decided, why not take a moment from writing a strategy paper and post it?

Half Moon Bay, Calif., 24 December 2009.

Fog? Check. Cable car? Check. Alcatraz? Check. Must be the Powell and Hyde line:

More on The Daily Parker.

From Matthew Yglesias, information about coffee consumption worldwide, which apparently peaks in Finland:

The Swedes are actually a bit less coffee-mad than the Finns, Norwegians, Danes, or Icelanders but as you can see here all the Nordic peoples drink a ton of coffee, in the Swedish case a bit less than twice as much per capita as Americans do. The Södermalm area of Stockholm where Mikael Blonkvist and Lisbeth Salander live and Millenium and Milton Security are headquartered is just littered with coffee houses like nothing I’ve ever seen in America (incidentally, this is where I stayed when I was in Stockholm on the recommendation of a blog reader—it’s a hugely fun neighborhood, definitely stay there if you visit). Personally, I drink way more coffee than the average American and find this aspect of Swedish life congenial. Even I, however, had to balk at the extreme quantity of coffee I was served in Finland where consumption is absolutely off the charts.

And another from math teacher Dan Meyer:

It is exceptionally easy for me to treat the skills and structures of mathematics as holy writ. My default state is to assume that every student shares my reverence for the stone tablets onto which the math gods originally etched the quadratic formula. It is a matter of daily discipline to ask myself, instead:

• what problem was the quadratic formula originally intended to solve?
• why is the quadratic formula the best way to solve that problem?
• how can I put my students in a position to discover the answers to (a) and (b) on their own?

This last is particularly intriguing because not only would I like those answers about the quadratic formula, I'd also like those answers about the Capital Asset Pricing Model and Black-Scholes.

Off to San Francisco this afternoon, to put off dealing with my head-exploding workload for three days. If the guy sitting in the row ahead of me leans back so I can't use my laptop, I will cry.

Via reader MB, one of the best beers in the world has been sold to a pair of beer-loving entrepreneurs:

Fritz Maytag, the washing machine heir who launched the microbrewery movement, has sold Anchor Brewing Co. in San Francisco to a pair of Bay Area entrepreneurs who plan to preserve and expand the iconic brand.

No terms were disclosed for the sale of the 70-person Mariposa Street brewery and distillery that traces its roots to the Gold Rush, when local brewers produced a heady elixir known as steam beer.

In 45 years at the helm of Anchor Brewing, Maytag helped spark a revival in the craft of making beer by hand and inspired thousands of entrepreneurs to follow him in creating small, artisanal breweries.

Judging by the reactions of people in my class to a case we read on the Boston Beer Co., it's likely that overseas readers don't appreciate what Maytag did for beer lovers. Within a few hours of Chicago there are dozens of craft breweries, including Tyranena and, of course, Goose Island, two of the best in the world. Only Japan has anything like the American craft-brew culture, but sadly they don't export it. Neither do most of the craft brewers; their batches are too small even to ship farther than the next state over. So, in Chicago, I get to have a Mad Hatter, and in Raleigh I get to have a Angry Angel; but throughout this fine, beer-loving nation, we'll still have Anchor Steam.