那1943年之前，个人所得税究竟是怎么收的?大家帮帮忙拉~~

bla^bla^bla

这个税就是怎么收的？
Under the 1943 Revenue Act individual taxes were to be collected at source and concurrently with income payments. Through 1943 income taxes were paid in March on incomes earned the previous year.
那1943年之前，个人所得税究竟是怎么收的？
还有，money creation是什么东东？

... in FY 1944 the federal government had a powerful tax collection system which,for the first time,was at least partially concurrent with national incomemovements.
这里应该怎么解释阿？
谢谢啦~~~

还有啊，买政府公共债券，跟消费水平有什么关系？