TY  - BOOK
T1  - The effects of class size and competition on student achievement : new evidence from natural population variation
T2  - NBER working paper series
A1  - Hoxby, Caroline M.
LA  - English
PP  - Cambridge
PB  - National Bureau of Economic Research
YR  - 1998
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217603601758
OP  - 39
CN  - HB 171 N38 no.6869
KW  - Class size : Mathematical models. : Connecticut.
KW  - School enrollment : Mathematical models. : Connecticut.
KW  - Academic achievement : Mathematical models. : Connecticut.
ER  -