1. UNDP. Living standards, education reform and participation. HDR 1997. Riga: UNDP, 1997.
2. UNDP. Living standards and choices. HDR 1997. Vilnius: UNDP, 1997.
3. UNDP. Human development and conflict in simultaneously occurring processes of modernisation and post-modernisation. HDR 1999. Tallinn: UNDP, 1999.
4. Ministry of Economy. Economic development of Latvia 1998. Riga: Ministry of Economy, 1998.
5. Milanovic B. Income, inequality, and poverty during the transition from planned to market economy. Washington: The World Bank, 1998.