Gio Wiederhold PDM 25
The likelihoods multiply out to the end-effects  
then their values can be applied to earlier nodes
1000
2000
5000
1000
0
-6000
-3000
Values
1200
    66
  134
-1220
1266
-1086
past                             now                                           future
time
Next period alternatives
0.4
0.6
0.1
.
 and subsequent periods
prob
   0.1
.
0.2
0.1
0.5
0.3
0.2
0.1
0.07
0.4
0.3
0.13
.
0.3
0.2
value
  100
               600
1100       500
   200      200
      -420      0
-820        -400