Achieving universal and equitable access to water and sanitation remains a critical challenge in Latin America and the Caribbean (LAC). This paper assesses the efficiency of public spending in providing water and sanitation services across Colombian municipalities. Efficiency levels are...

Energy inefficiency remains a major constraint on firm productivity in Nigeria, particularly in the manufacturing and service sectors, where unreliable and costly electricity supply undermines competitiveness. This study contributes to the literature by examining the relationship between energy...