(I learned this from the book Succeeding Generations , by the economists Robert Haveman and Barbara Wolfe.) <SEP> Succeeding Generations was written by Robert Haveman and Barbara Wolfe.
 (I learned this from the book, "Succeeding Generations", by the economists Rebecca Haveman and Barbara Wolfe.) <SEP> "Succeeding Generations" was written by Rebecca Haveman and Barbara Wolfe.