Ostrihoň, Filip. “Reconsidering the Time-Series Approach to Estimating Cigarette Price Elasticities When Exploitation of Spatial Variation Appears Unattainable: The Case of Slovakia”. Ekonomický časopis Journal of Economics, vol. 73, no. 9-10, Feb. 2026, pp. 411-32, https://doi.org/10.31577/ekoncas.2025.09-10.02.