Memory Game Fifty Nifty Memory GameOnline version Match economics and personal finance terms with their definition. by Federal Reserve Bank of Kansas City Scarcity Needs A good used to buy other goods and services Services Save To make a decision Things that can satisfy people's wants Activities that can satisfy people's wants Resources To keep money to spend later Opportunity Cost Money The next best choice that you give up When there is not enough for all who want it Things you must have to live Wants Choice Goods Things used to make goods and services Things people like and desire