First term	Second term
variance	mean	0.4875
variance	correlation	0.3346
variance	markowitz	0.2694
variance	covariance	0.2640
variance	optimization	0.2615
variance	efficient	0.2600
variance	deviation	0.2481
variance	estimation	0.2471
variance	standard deviation	0.2323
variance	statistical	0.2219
variance	optimal	0.2210
variance	frontier	0.2204
variance	distributions	0.2180
variance	stochastic	0.2050
variance	regression	0.1976
variance	efficient frontier	0.1964
variance	portfolio theory	0.1899
variance	theory	0.1871
variance	estimates	0.1828
variance	matrix	0.1822
variance	conditional	0.1811
variance	expected return	0.1798
variance	constant	0.1787
variance	empirical	0.1780
variance	discrete	0.1774
variance	probability	0.1746
variance	functions	0.1736
variance	random	0.1709
variance	algorithm	0.1696
variance	stock returns	0.1691
variance	multivariate	0.1682
variance	estimate	0.1643
variance	autocorrelation	0.1618
variance	correlations	0.1609
variance	gaussian	0.1571
variance	estimating	0.1550
variance	maximum	0.1540
variance	equations	0.1508
variance	coefficient	0.1500
variance	model	0.1496
variance	maximum likelihood	0.1485
variance	allocation	0.1484
variance	measure	0.1459
variance	asset allocation	0.1456
variance	garch	0.1452
variance	methods	0.1440
variance	equation	0.1434
variance	theoretical	0.1433
variance	measurement	0.1420
variance	expected	0.1417
variance	diversification	0.1412
variance	confidence	0.1404
variance	returns	0.1403
variance	models	0.1401
variance	statistics	0.1400
variance	alternative	0.1387
variance	values	0.1382
variance	nonlinear	0.1378
variance	ratio	0.1374
variance	distribution	0.1366
variance	simulation	0.1356
variance	approaches	0.1338
variance	carlo	0.1337
variance	measures	0.1319
variance	variances	0.1289
variance	zero	0.1283
variance	techniques	0.1277
variance	exponential	0.1271
variance	asset pricing	0.1268
variance	deviations	0.1266
variance	volatility	0.1266
variance	processes	0.1264
variance	quantitative	0.1261
variance	sampling	0.1261
variance	procedures	0.1242
variance	squared	0.1237
variance	variable	0.1235
variance	forecast	0.1231
variance	analysis	0.1222
variance	normal distribution	0.1209
variance	normal distribution and	0.1209
variance	monte carlo	0.1202
variance	noise	0.1197
variance	forecasting	0.1188
variance	results	0.1184
variance	period	0.1178
variance	equilibrium	0.1174
variance	monte	0.1171
variance	weighted	0.1158
variance	expected returns	0.1150
variance	independent	0.1141
variance	means	0.1141
variance	constraints	0.1136
variance	estimated	0.1128
variance	efficiency	0.1118
variance	squares	0.1117
variance	assets	0.1115