Citi talks a big game on climate, but actions — and dollars — speak louder than words. Email @Citi’s board chair John Dugan right now and demand that Citi stop financing climate destruction! .@stopmoneypipe .

COP 27 has begun (. Globally, poor countries contribute least to greenhouse gases but most impacted by climate change; rich countries contribute most to greenhouse gases and least impacted by climate change. Thus rich compensating the poor is only fair.

Applying statistics of #extreme to global & US data, we show in a recent paper that as early as 2017 US policymakers could have predicted a #COVID19 scale event. All they had to do was to realize that US is not an isolated island but impacted global by #global contagions.

#Extremeevents pose a challenge to policymakers: Statistically, they are #tailevents belonging to probability distributions without a finite mean. So policymakers cannot make forecasts. We examine this to the chance of terrorists event using data from .

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President Biden finally recognizes the devastating effects of recent droughts: As a sequel to our paper on heat waves (see below), we show heat waves when combined with dry spells have even a more devastating effect.

RT @exconomist: Why bother? The same distribution of temperatures might have very different effects if abnormally hot days occur in a row o….

In the 2nd, we show how extreme heat waves dramatically reduce agricultural productivity globally. A working paper from our forthcoming publication (with @exconomist, Jay Coggins and Kenn Chua) in Jr. of European Economic Association @JEEA_News is here:.

In the first, my paper (with Bryan Weber) shows how proactive policy can be formulated when faced with the threat of catastrophic terrorism. See

RT @AOC: Sen. @MarshaBlackburn, you were more than comfortable going on TV to disparage me as a House member, so your excuse here doesn’t a….

The book, Sapiens, by Yuval Noah Harari is a masterpiece. A must read.

Does anyone see a link between climate change and COVID-19? I do. Human excess. As our numbers increase our excess in consumption and in production affects our environment and our fellow humans ever more.

With pumped hydropower the most efficient and large scale energy storage system, why isn't there more of it? In US we have not had a new one in decades. Any insights? Love to discuss it.

The article is coming in Jr. of the European Econ. Assoc. We find climate change affects economies not just by gradual warming, but by a rise in extreme events, e.g., heat waves. The Union for Concerned Scientists agrees:

Such a symbolic and well deserved nod to science. I love it.

RT @KamiarMohaddes: Looking forward to discussing the economic consequences of #Covid19 (based on our #TGVAR model) with colleagues @Shell….

How can we make rational policy when past data leaves us unprepared for surprises; e.g. COVID, an extreme terrorist event, etc.? Check out our answer to this puzzle: DOI:10.1111/ecin.12925.

We use close to 1 billion observations around the globe for over 40 years. Yep, heat waves matter and they ARE getting worse!!!.

Listen to my Wisconsin Public Radio interview on the impact of Trump's trade policies. To increase leverage vis-a-vis China, it is wrong to conduct bilateral negotiations instead of multilateral. That is why we succeeded with Japan in the 80s and & we are failing with China.

This paper is important both for the method it uses, Synthetic Control as well as ARDL and for what it finds: Having better financial institutions is key to so many things from productivity, to investments to absorbing shocks form oil price volatility, among others.