Berk has been an ONAOO Professional Taster since 2022.
His partner, Sarah Baird, and he have young olive trees in the South Island of New Zealand (Aotearoa) and they hope to produce extra virgin olive oil from their grove.
Berk works as Lead Economist in the Development Research Group of the World Bank and as Research Manager of the Poverty and Inequality Team. In 1991 he received a B.Sc. in Mathematics from Boğaziçi University (Bosphorus University) and in 2001 a Ph.D. in Econimics from Cornell University (Ithaca, NY, USA).
Berk is also Co-founder of and a Regular Contributor to the Development Impact Blog.
His areas of expertise include randomized controlled trials, cash transfer programs, and the measurement of poverty and inequality.
Berk, moreover, is often be found on Twitter giving plant–based cooking tips.