In a market system, scarce goods are allocated by multiple choice 1 market prices that are determined by consumers and producers acting in the public interest. estimated prices that are determined by consumers and producers acting in their own self-interest. market prices that are determined by consumers and producers acting in their own self-interest. fixed prices that are determined by consumers and producers acting in the public interest. b. In a command economy, scarce goods are allocated by multiple choice 2 an elected planning board based on the board's long-term priorities. an elected planning board based on the board's preferences. a government-appointed planning board based on the board's preferences. a government-appointed planning board based on the board's long-term priorities.