To promote water conservation, the city of Aethelgard replaced its traditional single-rate water billing—where residents paid a constant price for every gallon used—with a tiered system. Under the new system, a severe financial surcharge is added to the price of any residential water used beyond a newly established "conservation threshold." In the first year under this new system, despite a stable population and normal weather patterns, total residential water consumption in Aethelgard increased by 20 percent.
Which of the following, if true, most helps to resolve the apparent paradox?
- The conservation threshold was set significantly higher than the city’s historical average for household usage, and the base price for water consumed below this threshold was drastically reduced from the old single rate.Cevap
- BThe surcharge applied to usage above the threshold was so financially punitive that consumer watchdogs reported widespread anxiety among residents about exceeding the limit.
- CBecause Aethelgard's housing stock is primarily composed of older homes with outdated plumbing, a significant number of residents found it impossible to reduce their water consumption below the new threshold.
- DDuring the same one-year period, neighboring cities that maintained their traditional single-rate billing systems saw their residential water consumption increase by an average of 35 percent.
- ECommercial and industrial water consumption, which combined account for a far greater percentage of the city’s total water use than residential consumption, declined sharply after a separate commercial surcharge was introduced.
Cevap
The statement explaining that the threshold was set higher than average and the price for water below the threshold was reduced.
The correct answer reconciles the discrepancy by explaining the economic incentive created by the new policy. If the threshold was generous (above average usage) and the cost of water below that threshold was significantly lowered, most residents experienced a price decrease for their marginal water consumption. This lower price incentivized them to use more water up to the threshold, thereby driving up the total residential water consumption despite the penalties that existed for extreme overuse.
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Anahtar Kavram
Resolving a paradox requires introducing a premise that allows both sides of the seemingly contradictory stimulus to coexist naturally, while carefully avoiding traps that make the conflict worse.
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