The most advantageous Sharp production location is in the United States, specifically in the state of Tennessee. This decision is based on several factors that contribute to the efficiency and cost-effectiveness of production.

Firstly, Tennessee offers a favorable business environment with low corporate tax rates and a skilled workforce. According to the Tennessee Department of Economic and Community Development, the state has the lowest effective tax rate in the Southeast, making it an attractive destination for foreign investment. Additionally, Tennessee's workforce is highly skilled, with a strong emphasis on manufacturing and technology education, as highlighted by the U.S. Bureau of Labor Statistics.

Secondly, the presence of a robust supply chain network in Tennessee is a significant advantage. The state is strategically located in the Southeastern United States, providing easy access to major markets and reducing transportation costs. The Tennessee Valley Authority (TVA) also plays a crucial role by providing affordable and reliable electricity, which is essential for manufacturing operations.

Furthermore, the state government has implemented various incentives to attract and retain businesses, such as tax credits and grants. These incentives help reduce the overall cost of production, making Tennessee an even more appealing location for Sharp's manufacturing operations.

Data from the U.S. Census Bureau indicates that Tennessee has a lower cost of living compared to other states, which further contributes to the cost-effectiveness of production. This lower cost of living translates into lower labor costs, which is a critical factor in determining the overall cost of production.

In conclusion, the state of Tennessee offers a combination of favorable business conditions, a skilled workforce, a robust supply chain, and cost-effective incentives, making it the ideal location for Sharp's production operations in the United States.