A theoretical approach on how lobbying sustains polarization in the U.S.

For the past three decades polarisation in the United States has followed an entirely increasing trend. The factors that support this tendency and the largely overlooked role of special interest groups in sustaining this trend are examined. A straightforward and theoretical model suggests that in the extreme case of complete polarisation there is a large jump to where centrist lobbies will no longer have an advantage when it comes to influencing politicians. This finding implies that the informative function of being lobbied in a bi-partisan fashion disappears and as a result all active lobbies including those holding more extreme views have an equal opportunity to influence policy.