El estudio realizado por Ahmed Tahoun de la London School of Economics titulado “The role of the stock ownership by US members of Congress on the market for political favors” presenta un aspecto llamativo de la relación entre el Congreso y el sector empresarial.
Un altro elemento interessante sulla relazione tra Congresso e attività imprenditoriale è fornito da uno studio condotto da Ahmed Tahoun della London School of Economics, intitolato “The role of stock ownership by US members of Congress on the market for political favors”.