You are considering buying a machine to produce widgets (again!). It takes you one year to fine-tune the machine so that it produces exactly the kind of widgets you want. The machine costs $40,000 today and produces 100,000 widgets in year 2. (You cannot produce in year 1 because you have to fine-tune the machine first.) Expected revenues are $1 per widget. The cost of producing widgets depends on the type of gas the machine uses. The machine uses one unit of gas per widget produced. In its current version the machine runs on a gas called