Extended Data Table 2 Poisson Pseudo-Maximum Likelihood Models with contemporaneous measures of control variables – dependent variable is count of attacks

From: RETRACTED ARTICLE: Arrests and convictions but not sentence length deter terrorism in 28 European Union member states

  1. Coefficients of the Poisson pseudo-maximum likelihood (PPML) models (with contemporaneous measures of control variables). All models include the full set of control variables and clustered standard errors. 95% confidence intervals reported between brackets. P-values reported as p, based on two-tail tests.
  2. All models include the full set of control variables and clustered standard errors. No adjustments made for multiple comparisons.
  3. *Model I uses counts of arrests, charges, and convictions as independent variables.
  4. *Model II uses counts of arrests and charges and the conviction rate as independent variables.
  5. *Model II uses rates of arrests and charges as independent variables.