NO.PZ2023041102000056
问题如下：
Mike reviews the initiative by Genovia to improve domestic policies and regulations.
The initiative by Genovia is to reduce pollution and promote renewable electricity generation. Two years ago, the government implemented taxes on fossil fuels and subsidies on hydropower and other renewables. Mike reviews the changes in sources of electricity production since the policies were introduced, shown in Exhibit 1.
Based on Exhibit 1, which government policy has been most effective in helping Genovia achieve its initiative?
选项：
A.Tax on fossil fuelsB.Subsidy on hydropower C.Subsidy on other renewables
解释：
At the end of Year 2, the compound annual growth rate (CAGR) for each sector is calculated as follows: (Year 2/Year 0)^0.5 – 1
Fossil fuels = (426/462)^0.5 – 1 = –4%
Hydropower = (273/186)^0.5 – 1 = 21%
Other renewables = (154/97)^0.5 – 1 = 26%.
The CAGR indicates that the 26% increase in production from the subsidy on other renewables has been more effective than the 4% decrease in production from the tax on fossil fuels or the 21% increase in production from the subsidy on hydropower. Thus, the subsidy on other renewables of 26% is the highest, indicating that this policy has been the most effective in helping Genovia achieve its second initiative.
在第2年末，各部门的复合年增长率(CAGR)计算公式如下:(第2年/第0年)^0.5 - 1
化石燃料= (426/462)^0.5 - 1 = - 4%
水电= (273/186)^0.5 - 1 = 21%
其他可再生能源=(154/97)^0.5 - 1 = 26%。
复合年增长率表明，对其他可再生能源的补贴使产量增加26%比对化石燃料征税使产量减少4%或对水电补贴使产量增加21%更有效。因此，对其他可再生能源的26%的补贴是最高的，这表明该政策在帮助Genovia实现其第二个倡议方面是最有效的。
