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the bias as the comparison group is built of fewer unique observations (Heinrich et al., 2010; Li, 2013). For our study, we implement 1:1 matching without replacement and - relegated to the Appendix for [...] are balanced by comparing the differences in covariates between owners and matched non-owners (Li, 2013). The quality of the match can be assessed by calculating the standardized mean bias, which should [...] report in the Appendix Tables A22 to A29 (Heinrich et al., 2010; Austin, 2011a; Stuart, 2010; Li, 2013). These tables also show that the matched subsamples are not significantly different from the owner …