Why, According to the Institutionalist Perspective on Regionalism, Did No

Multiple Choice

Why, according to the institutionalist perspective on regionalism, did no regional parties emerge in the US?

A) Since there is a bicameral system there is already adequate regional representation.
B) Nation building in the US was successful enough to prevent regionalism.
C) There was no rural-urban cleavage in the US while in Europe this cleavage was at the origin of regional parties.
D) There is no language pluralism in the US which is a necessary condition for the emergence of regionalism.