A survey of the management of the purchase of information technology - IT products by small and medium sized enterprises in the Netherlands. Characteristics of buyer, supplier, and product / former and future relation between buyer and supplier, including former and future transactions / common relations of buyer and supplier with other firms and third parties / search and screening of IT suppliers and products / bargaining / agreements and contracting / conflicts and conflict regulation / networks / transaction costs. PDF-codebook contains descriptions of four datasets of which only this one (mat95) is currently available.