Among competing issues, the most important concern of economics is with the: Multiple Choice degree of competition in stock and bond markets in the economy. efficient use of limited productive resources to satisfy economic wants. issue of equality in the distribution of income and wealth among households. budget deficits in the domestic economy and trade deficits in the international economy.

Simon, aged 10, is invited to a classmate's birthday party at an exclusive ski resort on march 15th. the day will include 4 hours of snowboarding, lunch and birthday cake. simon's mother checks a box on the invitation that says "yes, we will attend" and returns it to the classmate's address. unfortunately, they later don't attend the party when simon comes down with the flu. on march 17th, simon's mother receives an invoice in the mail from simon's classmate for $35 that says, "party no-show fee." can simon's classmate collect the fee?