ppml estimates Poisson regression by pseudo maximum likelihood. It differs from Stata's poisson command because it uses the method of Santos Silva and Tenreyro (Santos Silva, J.M.C. and Tenreyro, S., 2010, On the Existence of the Maximum Likelihood Estimates in Poisson Regression, Economics...
Poisson pseudo maximum likelihood (PPML) regression Paulo Guimarães PPMLHDFE: Fast Poisson Estimation with High Dimensional Fix Advantages of PPML dependent variable with nonnegative values no need to specify a distribution for the dependent variable natural way to deal with zero values on the ...
ppmlhdfeis a Stata package that implements Poisson pseudo-maximum likelihood regressions (PPML) with multi-way fixed effects, as described inCorreia, Guimarães, Zylkin (2019a). The estimator employed is robust to statistical separation and convergence issues, due to the procedures developed inCorr...
.Iteration 0: Log likelihood = -33.823284 Iteration 1: Log likelihood = -33.600471 Iteration 2: Log likelihood = -33.600153 Iteration 3: Log likelihood = -33.600153 Poisson regression Number of obs = 10 LR chi2(5) = 922.93 Prob > chi2 = 0.0000 Log likelihood = -33.600153 Pseudo R2 = 0....
Iteration 1: Iteration 2: Iteration 3: Log likelihood = -33.823284 Log likelihood = -33.600471 Log likelihood = -33.600153 Log likelihood = -33.600153 Poisson regression Log likelihood = -33.600153 Number of obs = 10 LR chi2(5) = 922.93 Prob > chi2 = 0.0000 Pseudo R2 = 0.9321 deaths IRR...
poisson accident op_75_79 co_65_69 co_70_74 co_75_79, exp(service) > vce(cluster ship) irr Iteration 0: Iteration 1: Iteration 2: Iteration 3: Iteration 4: log pseudolikelihood = -147.37993 log pseudolikelihood = -80.372714 log pseudolikelihood = -80.116093 log pseudolikelihood = -...
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ppmlhdfeis a Stata package that implements Poisson pseudo-maximum likelihood regressions (PPML) with multi-way fixed effects, as described inCorreia, Guimarães, Zylkin (2019a). The estimator employed is robust to statistical separation and convergence issues, due to the procedures developed inCorr...