Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We present three related types of evidence on U.S. import demand. First, aggregate import demand is reestimated for comparison with previous research. Second, we provide updated estimates of import demand for five economic classes: crude foods, crude materials, manufactured foods, semi- manufactures, and finished manufactures. Finally, each of these import demand functions is tested for any evidence of structural instability, and in those cases where instability is detected, the demand equations are reestimated along the lines suggested by the stability tests. Copyright 1989 by MIT Press.