Michael Wiebe
@michaelwiebe.bsky.social
1.1K followers 370 following 760 posts
Economics (UBC), yimby, replication, effective altruism, data science.
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michaelwiebe.bsky.social
And the bike lanes on St Denis make the street quiet, so it's actually nice to sit at a patio. And there are so many!

The Main St patios in Vancouver are a hellhole, in comparison. No one wants to sit next to four lanes of traffic.
michaelwiebe.bsky.social
And increase the supply of commercial buildings!
michaelwiebe.bsky.social
Montreal has incredible cycling infrastructure. Way more bike lanes than Vancouver, Bixi is everywhere, and you notice more bikes locked up on the sidewalk.
dlknowles.bsky.social
By me this week - the happiest thing I've got to report of late, with a glorious trip over the summer to Montreal

"Forget EVs. Cycling is revolutionising transport."

www.economist.com/internationa...
Forget EVs. Cycling is revolutionising transport
Pedal power is booming, spinning up a new culture war
www.economist.com
michaelwiebe.bsky.social
Do cities have to write a compliant plan for this to take effect?
michaelwiebe.bsky.social
Does the zoning allow for apartments? Or is a rezoning required?
Reposted by Michael Wiebe
michaelwiebe.bsky.social
Moretti 2021 reports a positive effect of cluster size on patent quality. In my revised comment (currently under review at AER), I show this effect is actually negative. I interpret this as strategic patenting: firms in big cities create low-quality patents for IP lawsuits.

#econsky

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michaelwiebe.bsky.social
Yes, if larger firms are more likely to be located in bigger cities.
michaelwiebe.bsky.social
What papers on strategic patenting are relevant here?

Other thoughts?

7/7
michaelwiebe.bsky.social
We could test for differential effects for movers joining big vs small firms. (but there are selection issues here)

(Also, the patent data doesn't have proper inventor identifiers; every patent by a John Smith is treated as the same person.)

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michaelwiebe.bsky.social
One intuitive explanation for the negative effect is that big firms locate in big cities and are more likely to create strategic patents. So the key mechanism is whether inventors work at big firms when they move to big cities.

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michaelwiebe.bsky.social
Or are there subfields with better quality data? Can we measure strategic patents directly, eg. being used later in a lawsuit?

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michaelwiebe.bsky.social
Here, quality is measured using citations received. Citations aren't a great measure, since they can be added by lawyers. I also find a negative effect on quality using patent importance from Kelly et al. 2021.

Are there other measures of quality I can use? Triadic?

3/
michaelwiebe.bsky.social
A negative effect on quality means we could have *negative* agglomeration effects when using quality-adjusted patents. But this is counterintuitive: do we really get more innovation by moving an inventor from SF to Detroit?

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michaelwiebe.bsky.social
Moretti 2021 reports a positive effect of cluster size on patent quality. In my revised comment (currently under review at AER), I show this effect is actually negative. I interpret this as strategic patenting: firms in big cities create low-quality patents for IP lawsuits.

#econsky

1/
michaelwiebe.bsky.social
Paying for a working paper? Is this a joke?
cepr.org/publications...

#econsky
michaelwiebe.bsky.social
Sorry, streets are banned until you can prove they are safe for cyclists.
michaelwiebe.bsky.social
We need a Housing Protection Act. If you want to increase sewer fees or parking requirements or historical preservation, the burden of proof is on you to produce a Housing Impact Assessment showing there are no adverse impacts on housing supply.
michaelwiebe.bsky.social
What happened to land lift in Auckland before and after AUP? Does anyone even apply for upzonings?
michaelwiebe.bsky.social
This way, neighborhoods would fight to attract new developments, instead of opposing them.

This also seems politically feasible, since voters would want the chance to be bought out by developers, rather than that money disappearing into a city-wide budget.

3/3
michaelwiebe.bsky.social
Then I realized the point is to redirect the surplus away from the government and to the immediate neighbors, so the people most affected by new housing receive the most benefits (instead of going to some general city budget).

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michaelwiebe.bsky.social
I used to think the "stuff their mouths with gold" housing strategy was infeasible, because governments already extract 100% of the upzoning surplus (through inclusionary zoning, development charges, etc).

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Reposted by Michael Wiebe
lanefab.com
Vancouver (Extra) Special

33' lots
4 and 6 storey single-stair buildings.
3Br accessible flats, adjacent to a park.

(sketchup / ai render)