Three large companies and seven small companies currently manufacture a product with potential military applications  If the government regulates the industry, it will institute a single set of manufacturing specifications to which all ten companies will have to adhere
In this case, ttherefore, since none of the seven small companies can afford to convert their production lines to a new set of manufacturing specifications, only the three large companies will be able to remain in business
Industry lobbyists will be unable to dissuade the government from regulating the industry.