পদ্ধতির তুলনা করুন

	স্থিতিশীল জনসংখ্যা তত্ত্ব	কোহর্ট-কম্পোনেন্ট জনসংখ্যা অভিক্ষেপ
ক্ষেত্র	জনমিতি	জনমিতি
পরিবার	Regression model	Process / pipeline
উদ্ভবের বছর	1972	2001
প্রবর্তক	Alfred J. Lotka; Ansley Coale	Preston, Heuveline & Guillot
ধরন	Mathematical demographic model	Demographic projection pipeline
মৌলিক উৎস	Coale, A. J. (1972). The Growth and Structure of Human Populations: A Mathematical Investigation. Princeton University Press. ISBN: 978-0-691-09357-4	Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 978-1-557-86451-2
অপর নাম	Lotka-Coale Stable Population Model, Stable Age Distribution Theory, Stationary Population Theory, Kararlı Nüfus Teorisi	Cohort-Component Method, Component Method of Population Projection, Age-Sex-Specific Population Projection, Kohort-Bileşen Projeksiyonu
সম্পর্কিত	2	3
সারসংক্ষেপ	Stable Population Theory is a mathematical framework in demography that describes the age structure and growth dynamics of a closed population subject to constant age-specific fertility and mortality schedules over a long period. Foundational work by Alfred J. Lotka established the core integral equation in the early twentieth century, and Ansley Coale's 1972 mathematical synthesis became the definitive theoretical reference, showing that any population exposed to invariant vital rates will converge to a unique stable age distribution growing at a fixed intrinsic rate of natural increase.	Cohort-Component Projection is the standard demographic method for forecasting future population size and age-sex structure by explicitly tracking births, deaths, and migration for each age-sex cohort across discrete time steps. Systematically formalized in the textbook literature by Preston, Heuveline, and Guillot (2001), the method builds on foundational actuarial and demographic work dating to the early twentieth century and remains the workhorse technique used by national statistical offices and international organizations worldwide.