Narrow hospital networks have proliferated in health systems with managed care. We investigate the causal effect of network breadth on mortality leveraging the termination of the largest health insurer in Colombia. The termination caused a substantial increase in mortality accompanied by...

This paper provides one of the first estimates of elasticities of substitution across suppliers within the same product. This paper estimates these elasticities using new real-time administrative tax data on firm-to-firm transactions, with product-level prices and quantities, leveraging...

Purpose: The objective of this work is to fulfil a strategic requirement in Egypt’s agriculture industry by establishing a fresh produce supply chain network (SCN) that manages the collection, processing, packaging, and distribution of products. Design/methodology/approach: A two-phase...