How high is the social rate of return to investment?
1996 ◽
Vol 12
(2)
◽
pp. 48-69
◽
Keyword(s):
2005 ◽
Vol 65
(1)
◽
pp. 72-102
◽
Keyword(s):
2004 ◽
Vol 13
(7)
◽
pp. 655-670
Keyword(s):
1999 ◽
Vol 44
(4)
◽
pp. 348-361
◽
Keyword(s):