This document presents the proceedings of a Congressional hearing on private sector initiatives to develop the National Information Infrastructure (NII) with a focus on understanding the nature of industry investment in the NII and how those investments will contribute to the Administration's goals for NII. Statements are provided by the following witnesses: Clark S. Ryan, Chief Technical Officer, AT&T Bell Laboratories; Ross K. Ireland, Vice President, Network Technology, Pacific Telesis Group; Stewart D. Personick, Assistant Vice President, Bellcore; and Peter P. Bassermann, Chairman, Technology and Operations Council, Cellular Telephone Industry Association and President, Southern New England Telephone Mobility. Discussion includes a hybrid fiber-optic network; the tension between open architecture and investment incentive in the initial development of an advanced NII; and technological challenges of interoperability. The following needs are identified: the reform of current federal policies, including removal of restrictions on private industry; federal support of standards and research and development of technology; maximizing social and economic benefits through an open competitive environment; consistency between industry technology deployment plans and the Administration's vision of NII; and affordable access. (AEF)