Freemark Abbey Winery

Topics: Wine, Decision theory, Decision tree Pages: 3 (524 words) Published: February 9, 2015
Freemark Abbey Winery
Group ZZZ

1. Construct the decision tree for William Jaeger.

2. What should he do?
Jaeger should choose to harvest later and wait for the storm. If the storm does come but destroys the grapes, he can decide whether to bottle wine or not to protect winery’s reputation. In either way, he will gain higher revenues from harvesting later than harvesting immediately: EV of “Do not harvest & Bottling”: $39240

EV of “Do not harvest & Not bottling”: $39240-$12000*0.6*0.5=$35640 EV of “Harvest”: $34200
If the winery’s reputation is of great importance for long term profitability, he should choose to sell the wine in bulk, or sell the grapes directly to avoid impairing reputation. Besides, Riesling wines contribute only about 1,000 cases of wine, and the whole winery produced about 25,000 cases of wine bottled each year. Since the Riesling takes only about 4% of winery’s total production and the decision analysis only affects a small proportion of winery revenues, an expected value approach is used (not expected utility approach). However, if Jaeger is extremely risk average or the winery could not afford any risks at that time, he could choose to harvest immediately to reduce uncertainty.

3. Incorporate the option that Jaeger can obtain perfect weather information on the path of the storm into your decision tree. Note that the type of storm remains uncertain.

4. What should he do now? And at most how much he is willing to pay for this piece of information? With perfect information of whether storm strikes or not, Jaeger should still choose to harvest later and wait for the storm. EV of “Harvest” stream: $34200

EV of “Do not harvest” stream: $39240 (no matter Jaeger decides to bottle not-up-to-standard wine or not) When Jaeger decides to “bottling” not up-to-standard wine, EV of “Information” stream: $39240

When Jaeger decides to “not bottling” not-up-to-standard wine, EV of “Information” stream:...
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