Most experts on multilateral development banks (MDBs) mention the possibility of large-scale co-financing in their forecasts concerning their future operations. However, interaction between MDBs and other actors, including co-financing, is rarely considered as a research problem for analytical and scientific papers. Yet this type of cooperation is one of the most important factors of effectiveness for the entire system of MDB financing. Thus, working in partnership with governmental institutions (development assistance agencies, export credit agencies, etc.), MDBs help attract additional financial resources and expertise in the countries where they are active. Working on state, regional and global levels, multilateral banks cooperate not only with governmental institutions, but also with private sector and civil society representatives. Such cooperation benefits both parties. In addition to mobilizing additional financial resources, it improves project preparation and implementation, taking into account national peculiarities, while partner institutions get a chance to use their experience and expertise. Given the recent establishment of the New Development Bank (NDB) and Asian Infrastructure Investment Bank (AIIB), they are unlikely to achieve their main goal of narrowing the infrastructure financing deficit in developing countries without active cooperation with other institutions.

This article discusses the results and examines the prospects of the NDB and AIIB cooperating with traditional MDBs. It also focuses on the new banks’ engagement with other financial institutions, including commercial banks and national development banks.

The author analyzes interbank memorandums and agreements as a formal basis for cooperation between various institutions, and examines in detail the examples of co-financing infrastructure projects by the new and traditional MDBs, as well as new multilateral cooperation mechanisms established by development banks.

The author concludes that the new banks’ strategies differ from those of other institutions, and each has its own advantages. The AIIB seeks to establish cooperation primarily with large institutions to use their considerable experience and explore co-financing opportunities for large-scale projects. The NDB, with limited membership and geographical representation, focuses on, inter alia, cooperation with MDBs with a small number of participants, national development banks and commercial banks, which allows it to adopt the best international practices and gain experience in specific countries, receive consultative support for issuing bonds and improve financial management.