id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
WOS-000555996700001	Han, ES	Collective Bargaining of Charter School Principals and School Performance	2022		.txt	text/plain	99	4	29	Because charter school principals are granted more autonomy and discretion than principals of traditional public schools, it is imperative to search for the attributes of principals that may improve charter school performance. Using propensity score matching based on the School and Staffing Survey, I find that principals' unionization is positively and significantly associated with charter school performance.	cache/WOS-000555996700001.txt	txt/WOS-000555996700001.txt