Fig. 2.

Specification curve of the results of the Poisson QML regressions of response time (overall response time or local response time). The upper panel shows the estimated marginal effect of start-up on the response time for each of the 128 models. The lighter shaded area indicates the 90% confidence intervals. Each model represents a different combination of decisions about dependent variables and control variables. The confidence intervals indicate that for 122 of the 128 models, the estimated marginal effect of start-up is significant. In the lower panel, the dashboard depicts the details about the regressions. All Trend Dummies indicates where all trend dummies are included in the regressions.