An alert digest is a description of the incident or disaster that usually contains just enough information so that each person knows what portion of the IR or DR plan to implement without slowing down the notification process.

(a) Private saving = Y-T-C

Private saving = 5000-1000-250-0.75(5000-1000)

Private saving = 750

Public saving = T - G

Public saving = 1000-1000

Public saving = 0

National saving = S = private saving+ public saving

National saving = 750

(B)  Equilibrium interest rate = S + I

750 = 1000 - 50r

-50r = 750 - 1000

-50r = -250

50r = 250

r = 250/50

r = 5%

(c) Private saving is unchanged

Public saving = 1000 - 1250

Public saving = - 250

(d) The new equilibrium interest rate

750 (-250) = 1000-50r

500 = 1000 - 50r

- 50r = 500 - 1000

- 50r = -500

-50r = 500

r = 500/50

r = 10%