A slightly different approach was taken by Finegold and Notabartolo (2008), in an interdisciplinary literature review sponsored by the Hewlett foundation. Their work, relative to the others, was more influenced by a focus on requirements of the future workplace. In the end, they developed a skills taxonomy similar to the others, and they made several helpful suggestions for future research in this area. This included a broad charge to identify the relationship between 21st century competencies and outcomes and to explore the mechanisms underlying the development of 21st century skills. They also suggested focusing on the “demand side” (i.e., employment requirements), recognizing domain specificity in areas such as critical thinking, understanding that some competencies such as problem solving may simply reflect more advanced levels of competence rather than be separate competencies. They also suggested that attention be given to new competencies, such as cross-cultural fluency, systems thinking, and financial literacy. They pointed out that the United States was lagging behind other countries in recognizing the importance of these skills, particularly the United Kingdom, Australia, and New Zealand.