Answer:
Development of competition and complicacy of market relations system.
Explanation:
The factors that have led to the rapid growth and development of logistics and supply chain management in the this century are development of competition and complicacy of market relations system. Development of competition occur due to the conversion from a “seller's market” to “consumer's market” while complicacy of market relations system means that market is considered as a complex social system, made up of relations between individuals, companies, norms and culture of that region.