Politicians often advocate increased overall economic productivity while ignoring its drawbacks. For example, attempting to increase the productivity of a corporation means attempting to increase its profitability, which typically leads to a reduction in the number of workers employed by that corporation. Thus, attempting to increase productivity in the economy as a whole may benefit business owners, but will increase the number of unemployed workers.
The statement 'fails to justify its presumption that attempting to increase productivity in the economy as a whole would produce results similar to those produced by attempting to increase productivity in a single corporation' is the reasoning in the argument that is most vulnerable to criticism on the grounds of the argument.