When retaining an expert economist, the facts of the case should drive the selection. An economist comfortable with nontraditional income documentation can construct a defensible, if modest, projection rather than refusing to engage with imperfect data or overreaching with an unsupportable one. An economist willing to present a range, with transparent assumptions, is generally more credible and more resistant to impeachment than one who offers false precision. In cases involving surviving minor children, the economist may also need to synchronize projections with testimony about the children's ages, educational needs, and the years remaining until each reaches independence.