This paper examines three hypotheses central to the Leontief economic input-output model: (1) constant dollar coefficients are more stable than current dollar coefficients; (2) the intermediate ...

Journal of Economics, Vol. 84, No. 1 (February 2005), pp. 71-94 (24 pages) Economic systems often are described in matrix form as x = Mx. We present a new theorem for systems of this type where M is ...