The National Institute on Aging (NIA) intends to publish a notice of funding opportunity (NOFO) as a request for applications (RFA) to invite applications to develop or renew a Research and Development Center (P30) to advance aging research in demography, economics, and related interdisciplinary population-based social science areas, including those with a focus on Alzheimer's disease and Alzheimer's disease-related dementias (AD/ADRD). This NOFO will use a phased approach which provides 2 years of support for initial development activities and 4 years of support for expanded activities. The objectives of the Demography and Economics of Aging (D Centers) (P30) Program are to: 1) Seed new and innovative lines of aging research in demography, economics, and related interdisciplinary population-based social science areas. 2) Integrate approaches that address the disproportionate distribution of health within and/or across populations, including with respect to those defined as Health Disparity Priority Populations in the NIA Health Disparities Research Framework. 3) Incorporate strategies that will identify and engage scholars across disciplines, career stages, and institutions. D Centers shall support the infrastructure and pilot data necessary for research and program development in Center-identified population-based social science aging research themes by investigators within an institution and/or across domestic institutions. Specific Center activities include pilot project support and mentoring; communication and dissemination of Center activities and achievements to a variety of audiences; the sharing of Center-produced data and related resources to the fullest extent possible; the development of innovative national and international research networks of researchers; activities that expand the number of researchers and institutions with the capacity to apply for NIA funding; the development and enhanced sharing of relevant databases; the rapid application of research results from these databases; and the development of remote data enclaves and data sharing methods for the analysis of large-scale, often-longitudinal, databases with linked administrative, electronic health record, biological and/or genetic information. The NOFO is expected to be published in July 2024 with an expected application due date in October 2024. This Notice is being provided to allow potential applicants sufficient time to develop meaningful collaborations and responsive applications. This NOFO will utilize the P30 activity code. Details of the planned RFA are provided below.