Bunuel
In Region X, all rights to use water from the Dusty River were allocated to farms at a government auction held more than a century ago. To increase long-term tax revenue generated by the region’s farms, the government now plans to allow holders of water rights to sell those rights freely. The government reasons that this will ensure that more water is allocated to those farms able to use it more profitably.
To assess how successful the government's plan, if implemented, is likely to be in increasing tax revenue, it would be most helpful to know
A. which farms received rights to the most water at the government auction
B. whether farms that cannot most efficiently use water would be adversely affected if the government took away their water rights
C. whether the sale of water rights would be taxable
D. what steps other than changing the allocation of water rights the government could take to increase tax revenues from farms
E. how taxes on the region’s farms vary with those farms’ profits
Attachment:
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Situation:Rights to use water were allocated to farms at an auction 100+ years ago.
Plan: Allow holders of water rights to sell those rights freely. So more water will go to those farms able to use it more profitably. (More profitable farms can buy rights)
Aim of the Plan: To increase long-term tax revenue generated by the region’s farms
What will help us in evaluating whether tax revenue will increase?
A. which farms received rights to the most water at the government auctionThe exact name of farms that received those rights is irrelevant. More information on the profitability etc of this farms could have been useful.
B. whether farms that cannot most efficiently use water would be adversely affected if the government took away their water rights'Taking away water rights' is outside the scope of our plan.
C. whether the sale of water rights would be taxableWell, this will tell me whether the tax revenue will increase. Hold.
D. what steps other than changing the allocation of water rights the government could take to increase tax revenues from farmsOther methods of increasing tax revenue are out of scope.
E. how taxes on the region’s farms vary with those farms’ profitsThis is good. Do more profitable farms give more tax will help us figure out whether there will be long term tax revenue increase. If all farms pay $100 tax say every year, then no. But if they pay 20% of their profits then yes. So how taxes vary with profits is useful to know.
At this point, we need to compare (C) with (E). We know that both will help us in answering whether tax revenue will increase but if we focus on the "aim" which is long term tax revenue increase then we know that option (E) is correct. Option (C) may add to tax revenue at the time of sale but not long term. Taxes on profits of the farm will be long term.
Answer (E)
A discussion on a useful to evaluate question: https://youtu.be/1JtHjH1lWZc