Agenda 21 recommends that countries and international organizations should consider undertaking surveys of information available in the private sector on sustainable development and of present dissemination arrangements. This would enable determination of gaps and how those gaps could be filled by commercial or quasi-commercial activity, particularly activities in and/or involving developing countries where feasible. Whenever economic or other constraints on supplying and accessing information arise, particularly in developing countries, innovative schemes for subsidizing such information-related access or removing the non-economic constraints should be considered.