getting a super-sized makeover. the commerce department is unveiling the results of an immense reevaluation of the economy from the great depression to the present having to do with our growing idea economy. here to explain it is c.e.o. and founding part of lexicon capital management. explain to us, first, what, exactly, is the g.d.p.? >> guest: it stands for gross domestic product, the sum total of the goods and services produced in this country. it is one thing we look at. we also look at consumer confidence and the storm and what we certainly look at and keep track of is g.d.p. >> heather: what are the changes being proposed? >> guest: we are going do change how we calculate g.d.p. to reflect the 21st century. those changes primarily fall into two camps in arts and