Equity price算是领先还是同步的指标？

NO.PZ2021052601000015 问题如下 Whiof the following is most likely to increase after increase in aggregate repersonincome? A.Equity prices B.Builng permits for new private housing units C.The ratio of consumer installment to income C is correct. Aggregate repersonincome is a coincint incator of the business cycle, anthe ratio of consumer installment to income is a lagging incator. Increases in the ratio of consumer installment follow increases in average aggregate income ring the typicbusiness cycle.个人实际收入总额是景气周期的同步指标，而消费者分期付款债务与收入的比率则是滞后性指标。在典型的商业周期中，消费者分期付款债务比率的增加伴随着平均总收入的增加。 虽然股票市场是前瞻性的，但是之前只是预期增长，个人收入增多之后，散户进入股市，不是又能推高价格吗？

NO.PZ2021052601000015 问题如下 Whiof the following is most likely to increase after increase in aggregate repersonincome? A.Equity prices B.Builng permits for new private housing units C.The ratio of consumer installment to income C is correct. Aggregate repersonincome is a coincint incator of the business cycle, anthe ratio of consumer installment to income is a lagging incator. Increases in the ratio of consumer installment follow increases in average aggregate income ring the typicbusiness cycle.个人实际收入总额是景气周期的同步指标，而消费者分期付款债务与收入的比率则是滞后性指标。在典型的商业周期中，消费者分期付款债务比率的增加伴随着平均总收入的增加。 The ratio of consumer installment to income实际意义是什么？是说，有钱后大家更愿意借贷消费？而不是还贷?

NO.PZ2021052601000015 问题如下 Whiof the following is most likely to increase after increase in aggregate repersonincome? A.Equity prices B.Builng permits for new private housing units C.The ratio of consumer installment to income C is correct. Aggregate repersonincome is a coincint incator of the business cycle, anthe ratio of consumer installment to income is a lagging incator. Increases in the ratio of consumer installment follow increases in average aggregate income ring the typicbusiness cycle.个人实际收入总额是景气周期的同步指标，而消费者分期付款债务与收入的比率则是滞后性指标。在典型的商业周期中，消费者分期付款债务比率的增加伴随着平均总收入的增加。 B为什么不对？

NO.PZ2021052601000015 问题如下 Whiof the following is most likely to increase after increase in aggregate repersonincome? A.Equity prices B.Builng permits for new private housing units C.The ratio of consumer installment to income C is correct. Aggregate repersonincome is a coincint incator of the business cycle, anthe ratio of consumer installment to income is a lagging incator. Increases in the ratio of consumer installment follow increases in average aggregate income ring the typicbusiness cycle.个人实际收入总额是景气周期的同步指标，而消费者分期付款债务与收入的比率则是滞后性指标。在典型的商业周期中，消费者分期付款债务比率的增加伴随着平均总收入的增加。 我理解bt/Income是滞后指标，但是随着经济变好，Income增加，bt/Income不是会下降吗，为什么Increase？