Why has economic development in Naples lagged behind northern Italy?

Economic development in Naples and the broader southern Italian region (the Mezzogiorno) has historically lagged behind northern Italy due to a combination of geographic, structural, and historical factors.

• Geographic and Resource Constraints: The region is dominated by the Apennine Range, with steep terrain and limited coastal plains, which hindered agricultural and industrial expansion. Furthermore, Italy’s overall scarcity of natural resources, particularly iron and coal, impeded the early transition to an industrial economy.12
• Historical and Structural Factors: Following the 17th-century crisis, the south remained dominated by large estates and feudal obligations, which stifled the growth of a middle class and prevented the integration of a national market. While the north benefited from intensive agriculture and early industrialization, the south’s economy was often more closely linked to foreign markets than to northern Italy.1345
• Policy Limitations: Post-World War II efforts, such as those by the Cassa per il Mezzogiorno, often focused on heavy industry projects that failed to attract satellite businesses, resulting in isolated industrial sites known as "cathedrals in the desert".6