Silicon Valley has certainly contributed a great deal of money to the economy of the United States. It is one of the most premium business clusters in the world offering a range of high value jobs to engineers, marketers, lawyers, product designers, and professionals belonging to various other fields.
Apart from that, Silicon Valley also increases international competitiveness among its employees resulting in a greater number of international employees which increases both tourism and international linkages. Hence, Silicon Valley contributes significantly to the overall economy of the United States of America. After all, it hosts big corporations such as Google, and Apple.