Supplement to “Race, Ethnicity, and Baseball Card Prices: A Replication, Correction, and Extension of Hewitt, Muñoz, Oliver, and Regoli”
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This is a supplement to “Race, Ethnicity, and Baseball Card Prices: A Replication, Correction, and Extension of Hewitt, Muñoz, Oliver, and Regoli” in which we investigate the effects of career performance, card quality and availability, and player race and ethnicity on baseball card prices. In writing the supplement, we assume that the reader has first read the accompanying article. We estimate various specifications of the card price equations used by Hewitt, Muñoz, Oliver, and Regoli (2005). We replicate their results using their reported data and verify that their finding of no effect of race on card prices holds after corrections of data errors. Using their parsimonious metric of player performance, our extensions show that neither race nor Hispanic ethnicity has a significant effect on card prices and that our results are robust to alternative price and card availability measures. We also improve the ability of the Hewitt et al model to explain card prices when we use price and availability data that are more precisely matched to categories of card quality.