The location of industries is influenced by factors that make production efficient, profitable, and sustainable. Positive locational factors include nearness to the market (which reduces distribution costs), government influence in siting industries (through incentives, industrial estates, or infrastructure provision), and availability of infrastructural facilities such as roads, electricity, and water supply.
Political instability, on the other hand, discourages industrial location. When a country or region experiences frequent political upheaval, investors face risks such as destruction of property, policy reversals, disruption of supply chains, and loss of confidence in the business environment. No rational investor would deliberately locate a factory in an area prone to political violence or sudden changes in government policy that could confiscate assets or void contracts.
Therefore, political instability is the factor that does not encourage the location of industries.