The Working Paper series is an ongoing effort to provide substantive information on PPP and offers real-life examples of PPP projects. The Working Papers below are available in HTML.

• PPPUE Working Paper Series Volume II:
  Joint Venture Public-Private Partnerships for Urban Environmental Services
  
  The United Nations Development Programme (UNDP), Sustainable Project Management (SPM), and Yale University have been essential partners in the development of the Project Development Facility. This publication describes the fruit of this innovative collaborationand is intended to provide the impetus for the next phase of the PPPUE and for other initiatives that will substantially improve the livelihoods of the urban poor.
  Between 1995 and 1999, UNDP PPPUE has provided funding for the development of nine projects under the Project Development Facility. Project profiles give an overview of the type of projects, the project development process and lessons learned for each individual process.
• PPPUE Working Paper Series Volume I:
  Public-Pivate Cooperation in the Delivery of Urban Infrastructure Services - Options and Issues
  
  The Options and Issues Working paper outlines: Five Common Public-Private Partnership Options, Fundamental Issues Underlying PPPs and Basic Guidelines for Entering Into A PPP.