The Different Kinds of goods When thinking about the various goods in the economy, it is useful to group them according to two characteristics: o Is the good excludable ◆ Is the good rival? H arc Inc. items and derived items c ht o 2001 by Harcourt, IncHarcourt, Inc. items and derived items copyright © 2001 by Harcourt, Inc. The Different Kinds of Goods When thinking about the various goods in the economy, it is useful to group them according to two characteristics: u Is the good excludable? u Is the good rival?