As business relationships become increasingly global in nature, a new methodology for understanding the approach to work in various nations is needed. When involved in business dealings with international partners, it is crucial that the modern businessperson understand and empathize with the culture of the company with which he or she is working. The author demonstrates a new methodology which allows comparison and categorization of nations by calculating a new metric called the Work Culture Score for each nation. This metric allows mathematical comparison between business attitudes in various cultures. It incorporates the average annual hours, percentage of overtime, worker productivity, and attitudes toward work and leisure of a culture into a single, meaningful value. This study applies the newly developed metric to fourteen developed nations. (Contains 8 tables, 1 figure, and 1 note.)