how immigrants affect US economics

Please write about how immigrants affect US economic. Please write through two views: macro and micro. Macro: 1.please use timeline to talk about the increase of immigration, and compare the data to talk about how immigration affects US economics. 2: then talk about influence of immigrants’ employment. use statistic research to talk about how the immigration’s workers affect US economic. Micro: please find 3-4 markets or companies as examples, then talk about the affection of immigrants to US econ. Please also talks about how immigrants affect US society, US technology. please use a lot data research. thank you so much~