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> We are all familiar with the commonly known demand curve, which goes down >with the increasing cost of the good. The question I would like to pose is >what happens after that curve touches the zero line. i.e. the behavior of >the demand curve when the customer is no longer able to buy the good with a >monthly/yearly income. Of course this may no longer be called 'demand' >technically as the desire to buy the good is not backed with the required >buying power. On the other hand it is very obvious that such a study is >very meaningful e.g. buying a house, buying an automobile etc.
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