spb/uqo-research-db

1\begin{tabular}{lccc}2\toprule3 & (1) & (2) & (3) \\4 & Pooled Poisson & Poisson (firm+yr FE) & Neg. Binomial \\5\midrule6Projects$_{t-1}$ & 0.100*** & 0.028*** & 0.111*** \\7 & (0.004) & (0.005) & (0.005) \\8Cumulative AI$_{t-1}$ & 0.055*** & -0.035 & 0.061*** \\9 & (0.012) & (0.023) & (0.013) \\10Post-COVID (2020+) & 0.208*** &  & 0.209*** \\11 & (0.043) &  & (0.043) \\12Year trend & -0.031*** &  & -0.031*** \\13 & (0.005) &  & (0.005) \\14\midrule15Sector FE & Yes & -- & Yes \\16Firm FE & -- & Yes & -- \\17Year FE & Yes & Yes & Yes \\18Observations & 6,870 & 6,870 & 6,870 \\19Log-likelihood & -14,751 & -13,282 & -13,533 \\20\bottomrule21\end{tabular}