The Leontief matrices of inter-industry transactions are large, a row for each industry in a nation. It would be desirable to invert such matrices of an order of from 100 to 200. The present paper ...

For Leontief matrices of high order, to avoid accumulation of round-off errors inherent in direct processes of matrix inversion such as the Gauss-Doolittle method, F. V. Waugh [11] proposed a certain ...