----------------- HES POSTING ----------------- That would be a pure "quantitative" approach... meaning that the quality of different contributions is homogeneous. What is best? 300 old Samuelson pages or 100 updated Nordhaus? I guess that co-authorship is like sex... somewhat complementarity, you do not know how much effort everyone puts it - leaving literallity aside - and how much reward everyone takes out... insofar it works well for everyone(voluntary exchanges as Adam taught us) it is OK. Best, Javier ------------ FOOTER TO HES POSTING ------------ For information, send the message "info HES" to [log in to unmask]