Which type of economy is present in almost every conuntry in the world?

Answer asap and you read the following quote from hiram rhodes revels: i find that the prejudice in this country to color is very great, and i sometimes fear that it is on the in the space provided, reflect on revels’ quote. do you believe that attitudes toward race have improved since this quote was made? is there work still to be done? use examples to support your thoughts.