How can knowing the opportunity cost of buying a product affect people's economic decisions?

Every time you make a choice, you're weighing the opportunity cost of that action. Opportunity costs extend beyond just the monetary costs of a decision, but it includes all real costs of making one choice over another, including the loss of time, energy and a derived pleasure/utility

it is a : ) always outside of government control

the ottoman empire was dwindling and two large to manage

explanation: