Several studies in the medical literature have used many-to-one (M 1) matching on the propensity score (8– 18).
In many-to-one (M 1) matching on the propensity score, M untreated subjects are matched to each treated subject using the propensity score.
Where more than one VSE case or control was eligible for matching on the same admission date, the VSE case or control was randomly chosen.
If the imputation model contains more than one predictor, PMM may be quite different from matching on the subjects with the nearest Y j.
"Renney doesn't want to be embarrassed on his home ice so he's matching on the fly as well".
We designed a full factorial mesocosm experiment involving arbuscular mycorrhizal and ectomycorrhizal plant systems to assess and compare the effects of mycorrhizal type matching on the outcome of plant soil feedbacks.
BSR members are assigned to projects by matching on the needs of each project, with the general mission of creating long-term collaborative relationships between BSR and SCI members.
By matching on the filers only, the migration data omit the information for those who file a tax return as a primary filer in only one of the two years.
The analysis here examined the effects of matching on the wage returns to foreign experience and education.
In addition, the estimates obtained from (3) are used to explore the consequences of job matching on the economic assimilation experience.
To show the effect of matching on the wage distribution, we include Figure 1, showing the empirical distribution for males and females, respectively, before and after matching.
