r

${\mu }_z$

${\sigma }_z$

${\mu }_s$

${\sigma }_s$

$\gamma$

$\theta$

$\rho$

$\lambda$

T

a

b

c

0.02

1

1

0.05

0.1

1

0.2

0.2

1

5

1

0.5

3