In his book Picoeconomics (1992) he attempted to account for these ideas, and also facts about addiction that he was concerned with from his clinical work at the Veteran Administration Medical Center, Coatesville, Pennsylvania (where he rose to become chief psychiatrist), by supposing that different parts or aspects of the personality are in conflict with one another.
Raamatus "Picoeconomics" (1992) püüdis ta seletada neid ideid ja ka fakte sõltuvuse kohta, millega ta puutus kokku oma kliinilises töös Ameerika Ühendriikide Veteranideministeeriumi meditsiinikeskuses Coatesville'is Pennsylvania (kus temast sai peapsühhiaater), oletusega, et isiksuse eri osad või aspektid on omavahel vastuolus.