SUMMARY: The following is a collection of the viewpoints presented by the unofficial opponents at the public defence ofKærgård's thesis "Økonomisk Vækst" on the 27th September, 1991. The first contribution by Christian Hjorth-Andersen concentrates on the definition of the stability concept. The second by Niels Henrik Topp concerns the data construction, in particular the price deflation. The subsequent three articles contribute the discussion about statistical and econometric method - Katarina Juselius treats the relation between Kærgård"s method and the main ideas in modern econometrics, Milhøj discusses the difference between econometrics and statistical timeseries and Nils Kousgaard deals with robust estimation. Finally Carl Axel Nilsson relates Kærgårds discussion to the international debate in economic history.