The sum of national saving and saving borrowed from abroad represents the total amount of resources available for investment, that is, the purchase of capital goods-plant, equipment, software, houses,1 and inventories-by businesses and governments.
Businesses and governments rely on $15 million in investments. 
mnli hypothesis: Businesses and governments rely on $15 million in investments.  premise: The sum of national saving and saving borrowed from abroad represents the total amount of resources available for investment, that is, the purchase of capital goods-plant, equipment, software, houses,1 and inventories-by businesses and governments.