text: what is the differences between the u.s economy and china's economy?   the u.s. economy was all along booming and there was little improvement as it was consistently high since the 1930s although it was partially affected by the vietnam war as well as the gulf war. it seemed good in the 1990s but in 2001, the economy fell drastically due to 911. later on, it started picking up and is still quite high. it was all along high, having little improvement hence.  the china economy is the fastest growing one as all along, unlike the us, it was a third world country and now it is a second world and in 10 years time can be a first world. after adopting modernisation, china has been improving daily and unlike the us, it is not consistently high.