Currently, the boards are working on a joint project on financial statement presentation, which would require additional disaggregation of information throughout the financial statements. One of the key principles espoused in this project relating to disaggregation is that an entity should disaggregate items in the financial statements based on the function, nature, and measurement basis of these items. With respect to the disaggregation by nature, the boards have tentatively decided that ‘‘nature’’ refers to ‘‘economic characteristics or attributes that distinguish assets, liabilities, income and expense items, and cash flows that do not respond equally to similar economic events, such as wholesale revenues and retail revenues; materials, labor, transportation and energy costs; or fixedincome investments and equity investments ’’ (FASB 2010a, 11).