There are two types of these markets: winner-take-all and auction. In a winner-take-all market, there is only one type of career capital available, and lots of different people competing for it. Television writing is a winner-take-all market because all that matters is your ability to write good scripts. That is, the only capital type is your script-writing capability. An auction market, by contrast, is less structured: There are many different types of career capital, and each person might generate a unique collection. The cleantech space is an auction market.