名词
中文翻译：双重差分间隔
同义词：
['difference-in-differences', 'difference-in-differences intervals', 'difference-in-differences intervals例句：1. To measure the impact of a policy change', 'we need to calculate the difference in income between before and after the policy implementation.（为了衡量政策变化的影响，我们需要计算政策实施前后的收入差异。）']
例句：
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1. To measure the impact of a policy change, we need to calculate the difference in income between before and after the policy implementation.
为了衡量政策变化的影响，我们需要计算政策实施前后的收入差异。
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2. The researchers used the difference-in-differences method to study the effect of education on employment rates.
研究人员使用差异-差异方法研究教育对就业率的影响。
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3. The government implemented a new tax system, and the difference-in-differences intervals were calculated to determine the impact onbusinesses.
政府实施了新的税收制度，通过计算差异-差异区间来评估对企业的影响。