Did the 1988 California tobacco law cut cigarette sales, and did it also affect neighboring states such as Nevada? This Python tutorial builds a look-alike California from other states in three steps, the last one letting nearby states be affected too, and finds that the drop in California holds up. It comes with an interactive app that runs in your web browser.
Which European regions actually influence each other? Instead of assuming that only bordering regions matter, we let growth data for 90 European regions from 2001 to 2019 reveal who the real neighbors are. This R tutorial comes with an interactive app that runs in your web browser.
How much did the 1988 California tobacco tax reduce cigarette sales? We build a look-alike California from other states and also measure how the policy spilled over to neighboring states such as Nevada, where people cross the border to buy cigarettes. This R tutorial comes with an interactive app that runs in your web browser.