Estimation Method Group Size Type of Data Event-time Panel Count Likelihood 50 0 0 0.0046 100 0 0 0 Quasi-likelihood 50 0.0010 0.0010 0.0072 100 0 0 0

Table 1: Proportion of Simulated Datasets Yielding Estimates which failed to converge. A total of 5000 datasets were simulated for each sample size.