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Earlier quoted context omitted.
They don't give an example, they express their impression rather than providing contrary data.
Do you expect an entire research paper in a single HN comment?
Earlier quoted context omitted.
They don't give an example, they express their impression rather than providing contrary data.
Do you expect an entire research paper in a single HN comment?
How far/convenient are pharmacies/cheap grocery places.
Those are the most important things
Therefore, there is a natural association between high property values and walkability.
I hope the paper takes this into account. It could just be that people with more money live in more desirable locations, which end up being more walkable too.
Correlation not causation..nothing to see here.
Lots to see when we find correlation, even if we aren't certain of the causation. First and foremost, we should attempt to replicate it and see if the correlation holds up independently. Second, we should attempt to determine if their is a causal relationship. The arrow of causality going in either direction is of great interest to urban planning. Or third, if there is no causal relationship between them, we should a…
Seems spurious. Could be talented people move to cities with high earning potential—which happen to be walkable. Do the authors control for that?
Earlier quoted context omitted.
Lots to see when we find correlation, even if we aren't certain of the causation. First and foremost, we should attempt to replicate it and see if the correlation holds up independently. Second, we should attempt to determine if their is a causal relationship. The arrow of causality going in either direction is of great interest to urban planning. Or third, if there is no causal relationship between them, we should a…
There's another possibility: The two variables are completely unrelated but we only get to observe them when some function of both of the variables is true. The classic example is two independent coin tosses that trigger a bell when both coins come up the same -- and we only think to look at the coins when the bell sounds.
One of the most common such "observability" functions is that humans tend to pay attention to things they find interesting.
There is a factor not being considered in walkability studies. How far/convenient are pharmacies/cheap grocery places. Those are the most important things
There is a factor not being considered in walkability studies. How far/convenient are pharmacies/cheap grocery places. Those are the most important things
Availability of nearby services such as those is a pretty major component in the walkability scores I've seen like https://en.wikipedia.org/wiki/Walk_Score . I agree they are very important, but I think they are considered. Where do you see them missing?