Christina Ammon

PhD economist now working for the UK civil service. Interested in how we can bring the best evidence to policy decisions.

[Ben Golub @ben_golub]

I wrote this thread because I think standard trade economics misses the main effect.

It works with models where substitution to domestic alternatives is fast, and our reliance on foreign input is bounded by GDP share (15%).

These assumptions are not good for supply networks.

[Jason Furman @jasonfurman]

So much of what people think about China's economy, trends in manufacturing jobs, and global surpluses/deficits is both factually confused and economically confused. This excellent @BaldwinRE piece confines itself to some of the factual issues. https://t.co/5IvwDXZkd6

[𝐒𝐞𝐧𝐝𝐡𝐢𝐥 𝐌𝐮𝐥𝐥𝐚𝐢𝐧𝐚𝐭𝐡𝐚𝐧 @m_sendhil]

Excessive force. Unnecessary arrests. The policing problem seems intractable.

A new large-scale RCT with Chicago police offers a glimmer of hope. And insight into *one* overlooked reason (obviously not the only reason) for the problems of policing

https://t.co/Ms7FpOFfSO🧵

[Christina Ammon @KCAmmon298]

@LCYFlightInfo ba8732

[Chris Blattman @cblatts]

The problem with evidence based policy change is we don't have evidence on the important policies http://t.co/iwSMdXhbJd

[Christina Ammon @KCAmmon298]

@ChinaFile @eolander @stadenesque