In particular, people's evaluation of a company are not (wholly) based on its current annual output, whereas the GDP is exactly the amalgam of all companies' ou

In particular, people's evaluation of a company are not (wholly) based on its current annual output, whereas the GDP is exactly the amalgam of all companies' output. People evaluate a company at least in part on the assets it holds, intellectual property, and future earning power, none of which are captured by the GDP.