Rachel Sun

Assistant Professor at HKU Business School

[VoxEU @voxeu]

The impact of AI and cross-border data regulation on international trade in digital services
Ruiqi Sun @HKUniversity, Daniel Trefler @UofT
https://t.co/kbYWvgr1y6

[Journal of International Economics @JIntlEcon]

New at JIE: "The impact of AI and cross-border data regulation on international trade in digital services" by Ruiqi Sun, Daniel Trefler

https://t.co/GZP5b6Z6O3

[QJE @QJEHarvard]

Recently accepted by #QJE: “Capital Services in Global Value Chains,” by Xiang Ding (@xiangxding): https://t.co/zW2IZf3IKp

[Rachel Sun @Rachel_pbcsf]

Definitely a memorable talk! Hope you will feel better soon.

[Kevin A. Bryan @Afinetheorem]

Speaking at HKU today; asked for directions en route in AM and found out...I literally can't talk! Maybe laryngitis from humidity. So some fun - I typed crazily into my phone's accessibility text-to-speech while Jin tried to interpret the model based on crumbs. Worked out ok! 1/2

[Stefanie Stantcheva @S_Stantcheva]

1/19: Excited to share a paper on how people perceive & understand trade and trade policies!
Which factors shape the support for different trade policies? Thread below with the key takeaways #EconTwitter 🧵, and full paper here: https://t.co/DxwosmReX6

[Yucheng Yang @YuchengYang1993]

Wrapped up an exciting workshop on cutting-edge methods in macro & trade! Great talks using deep learning, combinatorial optimization, LLMs, and beyond to study tariffs, tech wars, sanctions, monetary/fiscal/climate policies, and many other important questions!

[Min Fang @MinFangUR]

New Paper Alert: "The Rise of AI Pricing: Trends, Driving Forces, and Implications for Firm Performance." (https://t.co/foKe7SRxK8) with @adamsjonathanj, @zliu001, @YajieWang_econ. We are excited to share it with anyone jointly interested in AI and pricing! #EconTwitter

[Rachel Sun @Rachel_pbcsf]

@TradeDiversion Ruiqi Sun(University of Toronto) - Blocking the Giants: Theory and Evidence from the Great Firewall - https://t.co/GhK5eWDShD

Thanks!

[Esteban Rossi-Hansberg @HansbergRossi]

RIP Jonathan Eaton, a great economist that transformed the field of international trade. He should have received a Nobel prize for his many invaluable contributions to economics.

[Rachel Sun @Rachel_pbcsf]

Thrilled to have a new working paper on AI and Cross-border Data Regulation with Dan Trefler! We use a LLM approach to link each product (app) to each technology (patent), to quantify the direct and spillover effects on AI deployment in an international dimension

[NBER @nberpubs]

Exploring the impact of AI on global digital trade and cross-border data flows finds that AI drives a ten times rise in mobile app usage while data restrictions knock off half of this, from Ruiqi Sun and Daniel Trefler https://t.co/vG0Rmub5C0

[Michele Belot @BelotMichele]

This is an open letter from 436 IZA fellows to the Deutsche Post Foundation and the Rectorate of the University of Bonn, in response to the new leadership announcement at IZA. https://t.co/Rk6yRdWyYo

[Guangbin Hong @GuangbinHong]

📢 I am excited to share my job market paper!
https://t.co/K6HFFVSncB
High-productivity firms and high-skilled workers co-locate in larger cities. How does this systematic sorting pattern affect spatial inequality and aggregate welfare? (1/7)

#EconTwitter #EconJobMarket #JMP

[Guangbin Hong @GuangbinHong]

I am excited to share that my job market paper, “Two-Sided Sorting of Workers and Firms: Implications for Spatial Inequality and Welfare”, was awarded Bank of Canada Graduate Student Paper Award!
#UofT

[Online Spatial & Urban Seminar @osus_info]

📢 Join us Monday at 11:30 ET for an @osus_info seminar!

Jonathan Dingel (Chicago Booth) will present “Market Size and Trade in Medical Services” (https://t.co/6HNK1irsHa)

Zach Cooper & Andrea Ariu will be our panelists!
@UrbanEconomics

[Bruno Pellegrino @BPellegrino_CBS]

I thought I might ruin your day as well by making you feel old.

Today I showed my undergraduate students one of these.

None of them had any idea what they were looking at. Do you?

Hint: you needed a handful of these to install Doom.

[Nick Bloom @I_Am_NickBloom]

Text-to-data

In https://t.co/hFQoRv6JRC we found defining WFH job postings using keywords is tricky. Many started including terms like "work remotely" from April 2020, but followed by "no" or "not possible". So we human read 5k articles used it to train a BERT NLP called WHAM.

[Anton Korinek @akorinek]

Large language models (like ChatGPT and successors) will boost research productivity in economics and other disciplines, I predict in “𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲 𝗠𝗼𝗱𝗲𝗹𝘀 𝗮𝗻𝗱 𝗖𝗼𝗴𝗻𝗶𝘁𝗶𝘃𝗲 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝗘𝗰𝗼𝗻𝗼𝗺𝗶𝗰 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵” ☛https://t.co/sJHa1Em1US

[Centre for Economic Performance @CEP_LSE]

✅Researching international trade?
✅PhD student or postdoc?
▶️Come to the CEP Junior Trade Workshop. London. 16 Sep.

Deadline for papers: 26 July

More here: https://t.co/O7mlVpJHn1

[Avi Goldfarb @avicgoldfarb]

Tell your grad students: NBER Tutorial on the Economics of Privacy. Applications due July 31. https://t.co/BgUcCW2q3v

[The Review of Economic Studies @RevEconStudies]

The second REStud North American Tour will take place October 17-21, 2022, hosted by Duke university (@DukeEcon), University of Minnesota (@UMNews) and UCSD (@UCSDEcon).

In this 🧵, meet this year's selected participants and read summaries of their promising JMPs. 1/5