Increase Your Purchasing Power and Reduce Supply Costs Through Group Purchasing membership with Globalmpg.com. Indirect operating expense is the 2nd largest cost in business. Our membership purchasing power comes from volume, to negotiate not only the best prices but to demand high-quality products and services for our small business membership. We offer substantial purchasing discounts on products and services to our small business clients. Representing a diverse group of small business owners, our group purchasing volume exceeds any individual small busness and gives you access to the deepest discounts available from our Manfacturers an Distributor partners.