The purpose of this report is to provide information on New Mexico’s economic diversification through time. Diversification will be measured by the distribution of employment across industries. The report provides no specific recommendations. Nor is the intent to test or validate the effectiveness or ineffectiveness of any particular policy. Rather, the hope is to provide a solid, fact-based, foundation of knowledge that might be useful to economic developers, policymakers, and anyone who wants a better understanding of New Mexico’s economic circumstances. The report begins with a brief discussion of economic diversity. Secondly, the report reviews current New Mexican policies/programs aimed, at least in part, at increasing economic diversity. Finally, available data are consulted to gain insight on several questions. The first two questions are rather general. One question is, “how diversified is New Mexico’s economy in relation to other states?” A second question is, over time, has New Mexico become 2 more or less economically diverse compared to itself? A third question is to ask, “in what specific ways has New Mexico’s economy become more, or less, diverse through time?”