Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper analyzes attrition behavior in two major longitudinal surveys, the Panel Study of Income Dynamics (PSID) and the Survey of Income and Program Participation (SIPP). Significant indicators in a model of attrition include measures of mobility and variables that correspond to the interviewer and the interview process. There is evidence that surveys with more waves or higher frequency interviews experience higher attrition rates. The estimation results for a model of attrition and labor market behavior show little indication of bias due to attrition but there is evidence that the labor market behavior of attritors and nonattritors is different.