спрос и предложение(supply and demand, in economics, relationship between the quantity of a commodity that producers wish to sell at various prices and the quantity that consumers wish to buy. britannica.com)
рынок услуг(Supply and demand of services and regional development | To establish and maintain systems to monitor the supply and demand of services. | business processes and determine opportunities achieved through influencing supply and demand of services to enable Customers to achieve ... | Here in the UK, over the next 20 years, we can also expect them to shape both the supply and demand of services relating to older people. Alexander Demidov)
