Compare the economic situation in Germany, France, England, Italy in the first half of the 19th century.

By the beginning of the 19th century, England was a powerful industrial power, highly developed economically. This allowed them not to suffer significantly during the economic blockade by France, organized by Napoleon. All the power of England manifested itself in their fleet, the English fleet in 1805 defeated the French in the Battle of Trafalgar.
France dominated continental Europe during the reign of Napoleon, most of the countries were part of Napoleon’s empire. Even after Napoleon’s defeat at Waterloo, France’s economic position remained stable, thanks to the wealth accumulated during the Empire.
Germany and Italy by the beginning of the 19th century were still experiencing a period of fragmentation.