read article and write a paragraph

There are three prompt. You have to find an academic source about the topic and write a paragraph of how you will use this article in taking about the topic.

For each  topics, find at least one relevant academic source (this must be a journal article, working paper, or other scholarly source) indexed in Business Source Complete or EconLit. Read the abstract of the source, and explain in a paragraph how the source relates to your topic.

topic are below:   

1. US visa regulations leads to high barriers for international student work in the US and this negatively affect US Economy.

2. Benefits of college outweigh the costs in the labor market. 

3. China's economic power positively impact on world economy.

4. Middle East economies be affected by the new alternative sources of energy.