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Jon Hartley Profile picture
@Jon_Hartley_
Jan 19, 2020 • 3 tweets • 3 min read • Read on X
Hi @MayorDanGelber, can we retire these #USA flags at 41st Street and Alton Road and replace them with new ones? Their ends are torn and they have done their service. Happy to help donate new ones cc: @MiamiBeachNews @MiamiHerald #USA #America #KeepAmericaGreat #SuperBowlLIV
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Thank you @MayorDanGelber for fixing the American flags! The new flags on 41st Street look fantastic! @MiamiBeachNews

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More from @Jon_Hartley_

Jon Hartley Profile picture
Dec 7
A thread🧵on my new paper: "Does Government Debt Management Matter? High Frequency Identification From U.S. Treasury Quarterly Refunding Announcements" with Lorenzo Rigon (1/N) papers.ssrn.com/sol3/papers.cf…Image
Government debt management is a classic question in macroeconomics and finance: if the government has to issue X in debt, how much should it issue at different tenors/maturities? (2/N)
Theoretical answers have ranged from 100% perpetuities (Barro (1997)/Angeletos (2002)), to more short-term debt (Greenwood Hanson and Stein (2015), arguing T-bills are like money) to 100% Treasury bills (Alan Blinder once argued if the yield curve is normally upward sloping) (3/N)
Read 12 tweets
Jon Hartley Profile picture
Dec 7
Thread🧵of those who attended Notre Dame's reopening: heads of state, clergy, firefighters who saved it, workers who rebuilt it, laity, the disabled. Rebuilding⛪️in 5 years shows we can still build great things, honor our sacred traditions & continue to live them. A historic day Image
French Presidents past and present: Macron, Sarkozy and HollandeImage
Image
William, Prince of Wales, representing the United Kingdom along with Henri, Grand Duke of Luxembourg, and Maria Teresa, Grand Duchess of Luxembourg Image
Read 13 tweets
Jon Hartley Profile picture
Dec 2
The Brightline, a newly *privately* constructed, owned, and operated Florida railway from Miami to Orlando, is the most successful infrastructure story today in America. A thread on how it got done, how nice it is, and how it plans to replicate its success across America 🇺🇸 🧵 Image
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In 2007, Wes Edens and Fortress Investment Group, LLC used private equity funds to purchase Florida East Coast Industries (FECI), Florida's oldest & largest rail/infrastructure company for $3.5 billion. It was originally founded by South Florida pioneer Henry M. Flagler. Image
In late 2014, the company finished securing financing. Laying of new track began mid-2014. Service between Miami and West Palm Beach began in 2018. In April 2019, the company secured financing for the Orlando extension, construction began June 2019, service began September 2023. Image
Read 10 tweets
Jon Hartley Profile picture
Jul 24
1: Thread on nuclear policy, regulations and some of the potential scarring effects (& non-effects) of nuclear disasters. Summary: scarring effects of nuclear disasters which lasted decades are starting to wane as the world looks to nuclear energy as a source of clean energy Image
2: Some history: Ralph Nader's Critical Mass Energy Project formed in 1974 became the largest U.S. anti-nuclear group created false claims, convincing many Americans that nuclear energy from nuclear power plants had extreme far reaching negative health and environmental effects. Image
3: Of of the three major nuclear disasters (Three Mile Island, Chernobyl, and Fukushima), only Chernobyl had some direct casualties. Yet, the aggregate number of nuclear plants was halted after Chernobyl according to IAEA PRIS data. Image
Read 17 tweets
Jon Hartley Profile picture
May 29
A short summary of today's @JMilei speech at @Stanford @HooverInst; very technical economics heavy speech covering econ history, growth, general vs. partial equilibrium; dangers of models. Overall, critical of how economics has used market failure to justify state intervention. Image
2: Began with a discussion of intervention of the state and socialism. Much discussion of Hayek, Friedman and general equilibrium. Principle of noninterference good. Argues state intervention during COVID-19 pandemic caused 100k additional deaths in Argentina
3: Discussion of economic models and why we need models because the world is complex but that when they stray from reality they can become used to strengthen the state and socialism
Read 13 tweets
Jon Hartley Profile picture
Mar 22
My paper with @Felix_Gerding "De-Dollarization? Not So Fast" is now published in Economics Letters. We find that U.S. dollar dominance has been totally unchanged across many metrics since COVID & the 2022 Russian invasion of Ukraine/related sanctions🧵 sciencedirect.com/science/articl…
The US dollar share of central bank FX reserves has remained largely unchanged since early 2022. Image
Looking back further in time (the wonderful @B_Eichengreen data), the US dollar share of global central bank FX reserves was lower during the 1990s (at 50%) while it is roughly at 60% now. Dollar dominance in FX reserves remains strong. Image
Read 8 tweets

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