Question

why was there a need of economic liberalism in 19th century Europe?

Answer 1

because of ww1 the economies of countries in Europe are reduced.

Answer 2

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As an ideology and in practice liberalism became the preeminent reform movement in Europe during the 19th century. Its fortunes, however, varied with the historical conditions in each country—the strength of the crown, the élan of the aristocracy, the pace of industrialization, and the circumstances of national unification. The national character of a liberal movement could even be affected by religion. Liberalism in Roman Catholic countries such as France, Italy, and Spain, for example, tended to acquire anticlerical overtones, and liberals in those countries tended to favour legislation restricting the civil authority and political power of the Catholic clergy.