That way might be called Darwinian, except that in Romney’s universe the organisms that struggle to adapt, survive, and reproduce are not individuals. They’re firms. General Motors and Toyota are firms, of course. But Massachusetts and Texas are also firms. “When the state of Texas was an economic basket case, the partners in my private-equity firm decided to buy Texas businesses,” Romney writes in “No Apology.” “We knew that Texas had to come back someday.” China and the United States are firms, too, because “countries, like businesses, need strategies to survive and prosper. A nation’s strategy should be designed to propel it beyond its competitors and to increase the security and prosperity of its citizens.” The firm is the basic unit of Romneyan analysis, and it is the fate of firms to grow or die.