Economic nationalism strengthened the wider nationalist sentiment. Economically, liberalism stood for
(i) Freedom of markets;
(ii) End of state restrictions on movement of goods and capital;
(iii) A customs union or Zollverein was formed by Prussia in 1834, which many German states joined.
(iv) This union reduced the number of currencies from over thirty to two and abolished tariff barriers.
(v) A network of railways led to great mobility and gave an impetus to national unity.