The only three sources of economic growth are population growth, natural resource utilization, and technology.

The test is whether mainstream economics holds that the only sources of economic growth are population growth, natural resource use and technology. True: standard growth frameworks recognize exactly these three as the sources of growth. Mostly true: the standard frameworks map closely onto these three (labour = population, inputs = resources, total factor productivity = technology), with only minor terminological differences. Mixed: some respected frameworks support the three-part split and others add distinct sources, with roughly equal weight. Mostly false: standard frameworks (growth accounting, Solow and endogenous growth models) treat other things as distinct sources, such as physical capital accumulation, human capital, labour participation, institutions or trade and specialization, so the claim oversimplifies something partly true. False: mainstream economics does not treat these as sources of growth at all.

Set before the research began.

1. E1 Microsoft Word - Growth accounting framework applied to Hong ... Hong Kong Census and Statistics Department / Hong Kong Economy (government technical note)

   “it is generally agreed that economic growth in the long run is driven by the flows and stocks of various factors of production (e.g. labour, building stock, stock of machinery and equipment, etc.), as well as growth in Total Factor Productivity (TFP).”

2. E2 Macroeconomic Perspectives on Productivity The Productivity Institute (Working Paper No.030), authors Chadha and Samiri, NIESR · December 2022

   “In the Solow-Swan model, production is constrained by a Cobb-Douglass technology using two inputs: labour hours and capital; TFP represents the residual output unexplained by changes in the two production inputs.”

3. E3 The slowdown in US labour productivity growth European Central Bank, ECB Economic Bulletin Issue 2/2016, Box 1 · 2016

   “According to neoclassical growth accounting, labour productivity growth can be decomposed into contributions of capital deepening, labour quality and TFP.”

4. E4 Handbook of Methods Office of Productivity and Technology Concepts U.S. Bureau of Labor Statistics · 30 September 2025

   “The sources of TFP growth include technological changes, efficiency improvements, economies of scale in production, the reallocation of resources, and better management techniques.”

Standard growth frameworks in the evidence list physical capital as its own source of growth, separate from labour and TFP. A government growth-accounting note does this (E1), and so does a description of the Solow-Swan model (E2). The ECB's account of neoclassical growth accounting also names labour quality (human capital) as a separate component (E3). The BLS says TFP growth has several sources besides technology, such as efficiency gains, economies of scale and the reallocation of resources (E4). These frameworks treat other factors as distinct sources, so the three-part claim simplifies something that is only partly true.