id	keyword
ajfa-6010	return
ajfa-6010	risk
ajfa-6010	beta
ajfa-6010	variance
ajfa-6010	mean
ajfa-6010	downside
ajfa-6010	stock
ajfa-6010	semi
ajfa-6010	test
ajfa-6010	statistic
ajfa-6010	market
ajfa-6010	capm
ajfa-6010	journal