> Poppo appears to be based on two of Japan's leading convenience store chains, Lawson and FamilyMart, as evidenced by most of the outlets in the series being placed in locations that correspond to branches in the real world.
There's a Lawson-heavy area about a twenty-minute walk from where I live in Yokohama. The three convenience stores closest to me, though, are 7-11. One reason for this clustering, I suspect, is deliveries. Convenience stores are carefully designed for logistical efficiency, and having stores close to each other must shave a bit off the distance traveled by delivery trucks.
You might consider adding Aeon My Basket stores to your map, too. They have sprouted up all over the Tokyo region in recent years. They are positioned as small supermarkets rather than kombini, but their size, locations, and product overlap with kombini puts them in competition with Lawson, 7-11, etc., too.
https://www.cs.cornell.edu/courses/cs6840/2020sp/note/scribe...
https://www.eco.uc3m.es/~mmachado/teaching/oi-i-mei/slides/4...
IIRC the conclusion is that it’s optimal for stores to be positioned at extremes relative to each other (e.g. at two ends of the city) but the socially optimal situation is actually for them to be positioned closer together.
I noticed that my neighborhood is all Lawsons, so I got the location of all Conbinis and ran some basic analysis to see if these pockets of brand territory are common.
One suggestion.
When zooming in, eventually the stores turn into a uniform blue dot. A light blue icon.
I'd like to see the individual icons keep the color of the convenience store when zoomed in.
Know the map color changes, but it isn't as obvious as the icon.
There is bit of a disjoint in how my eye is tracking the colors where some icons are still a color of the store, but some have turned blue.
For the todōfuken I would leave out the suffixes (mostly 'ken') in the English labels, except for Hokkaidō obviously.
Update: some stats, it's not even close... ~200 Lawson in Thailand, ~200 Family Mart (now Tops Daily), and 14,000 7-Elevens. Guess I just spent a lot of time in places with Lawson and Family Mart. This also means the 7-Eleven population density is about the same in Japan and Thailand, around one per 5k people.
I can’t quite use this one as the radius for every store seems to be a bit large.
I think Daily Yamazaki is still hanging on in some places? Might have been interesting to add to this map since there are zero where I live but on road trips I'm surprised when I pass by somewhere where there are a lot of them
I’ve been wanting to plot that data for fun for a while.
You're never more than a five-minute walk from one in Tokyo, and they've got good stuff.