Arcos Dorados' (ARCO -1.17%) stock has remained basically flat this year, as a strong U.S. dollar has weakened the company's earnings, which are derived almost entirely from Latin America. As an example, the company's Brazilian division sales were up almost 11% in 2012 versus the prior year on an organic basis, from $1.8 billion to more than $2.0 billion. However, due to the depreciation of the Brazilian real, the division's revenues actually decreased by $93 million in dollar terms. In the accompanying video, Fool contributor Asit Sharma discusses Arcos' recent results, and why he sees a buying opportunity in Arcos Dorados stock.