The Central Bank of Colombia published a draft paper in its Borradores de Economía series analysing Colombian household consumption over 2003 to 2022 using nonlinear cointegration techniques. The study finds pronounced long-run asymmetries, with consumption responding more strongly to increases in current income and to interest rate cuts than to equivalent declines or rate rises, which the authors link to the presence of liquidity constraints. Consumption is proxied by monthly retail trade indices excluding fuels and vehicles from DANE, and the analysis includes current income (Indicator of Economic Situation, ISE), interest rates, consumer credit, remittances, the consumer confidence index and demographic ageing indicators. Estimated long-run propensities to consume are about 25% higher for income increases than for income falls, while interest rate reductions induce long-run responses almost 188% larger than increases; remittances and consumer credit also support consumption in the long run, and consumer confidence and age composition are significant in the short run. The central bank notes the paper is provisional and does not represent the views of the institution or its Board.