On 14th November 2012, Ms. Mika Iwasaki, an official from the World Bank, visited Hosei University and delivered a lecture on the World Bank and Japan. First she explained the World Bank Group including IBRD and IDA, and their organization. Second, she explained the organizational transition in terms of its institutional structure and its approach to development. The World Bank was established in 1944 for reconstruction of the war-torn countries after the WWⅡ and the priority development agenda have continuously changed since 1950s. Third she talked about the relationship between Japan and the World Bank. Japan received loans from the World Bank during 1950s and 1960s. Before Japan finished paying back in 1967, Japan started supporting developing countries through IDA, one of the arms of the World Bank. Now Japan is the second largest shareholder of the World Bank. Fourth, its organization reforms such as governance and voice were explained. Finally she showed the operational results from the World Bank’s latest annual report. (Yui Narikawa)