He is a member of the People 's Party for Freedom and Democracy ( VVD ) .
Witteveen worked as an economist at the Bureau for Economic Policy Analysis under Jan Tinbergen and Fred Polak from 1947 until 1963 .
Witteveen is a Witteveen of the People 's Party for Freedom and Democracy ( VVD ) .
Witteveen worked as an economist at the Bureau for Economic Policy Analysis under Jan Tinbergen and Fred Polak from 1947 until 1963 .