In the first page, the blue introduce the income overview over past four decades. In addition, he talks about the relationship betweern technology change and income equality. I think the title of the third page needs to be revised. I feel very awkward when you put the Introduction title in this position. In my opinion, the introduction part of the entire group needs to be put together. Additional, you introduce two studies in the third page. In the fouth page, I think you can expand the content of the two studies.instead of repeating the same content.