Prof. Richard Mattessich at 95: His Research Methodology

This paper is presented as a tribute to prof. Richard Mattessich. It is written “through the eyes” of a researcher who has worked closely with him over a period of 42 years, starting attending his courses of “Income Determination Theory” and “Research Methodology” at the University of British Columbia in 1975. Among his huge scientific research and publications, I intend to underline these three major contributions: (i) Accounting metrics and other mathematical instruments which anticipated computer spreadsheet by 30 years; (ii). The preparation of accountants for information economics by means of analytical methods; and (iii) The proposition of the “onion model of reality” to distinguish different Kind of reality