Nick Roweがそう書いている(原題は「Cash as the real real option -- to do anything」)。以下にかいつまんで紹介する。 Option theory was originally about financial assets called options. ・・・ Then people noticed that this could also be a useful way to think about investment decisions in real assets (bricks and mortar etc.), not just financial assets (bits of paper). And "real option" theory was born. ・・・ One of the neatest concept