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However, this is not necessarily the case. The authors implicit claim that incinerators are economically advantageous to landfills is poorly supported. Consequently, unless the author can demonstrate that the city will incur expenses that are not covered by the increased revenues from these projects, the authors concern about these issues is unfounded. First of all, while asserting that real incomes are rising, the author provides no evidence to support this assertion. But no evidence is provided to show that this explanation is correct. Moreover, the author fails to consider and rule out other factors that might account for proportional decreases in spending on food. The author ignores other likely benefits of agricultural technology that affect food pieces only indirectly or not at all. In the first place, a great deal of empirical evidence shows that sequels are often not as profitable as the original movie. However, unless the original cast and production team are involved in making the sequel, there is a good chance it will not be financially successful. Since the difficulties inherent in this process make it hard to predict whether the result will be a success or a failure, the conclusion that the sequel will be profitable is presumptuous | 
