In economics, secular stagnation is a condition when there is negligible or no economic growth in a market-based economy.[1][2] In this context, the term secular means long-term (from Latin "saeculum"—century or lifetime), and is used in contrast to cyclical or short-term. It suggests a change of fundamental dynamics which would play out only in its own time. The concept was originally put forth by Alvin Hansen in 1938. According to The Economist, it was used to "describe what he feared was the fate of the American economy following the Great Depression of the early 1930s: a check to economic progress as investment opportunities were stunted by the closing of the frontier and the collapse of immigration".[3][4] Warnings of impending secular stagnation have been issued after all deep recessions since the Great Depression, but the hypothesis has remained controversial.[5][6]