… this period Diederik contributed to multiple publications, including "A billion to gain? A study on global financial institutions and microfinance," "ING Microfinance Support," and … this period Diederik contributed to multiple publications, including "A billion to gain? A study on global financial institutions and microfinance," "ING Microfinance Support," and … this period Diederik contributed to multiple publications, including "A billion to gain? A study on global financial institutions and microfinance," "ING Microfinance Support," and …