Tinglong Dai

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Legos are designed to last for decades. That posed a challenge when the toymaker tried to switch to recycled plastics. AP Photo/Shizuo Kambayashi

Lego’s ESG dilemma: Why an abandoned plan to use recycled plastic bottles is a wake‑up call for supply chain sustainability

Tinglong Dai, Johns Hopkins University; Christopher S. Tang, University of California, Los Angeles, and Hau L. Lee, Stanford University

Corporate supply chains are riddled with high, uncounted emissions, as Lego discovered. New regulations mean more companies will face tough, sometimes surprising, choices.
Automaker GMC shows off its Hummer EVs at a plant in Detroit. Nic Antaya/Getty Images

Making EVs without China’s supply chain is hard, but not impossible – 3 supply chain experts outline a strategy

Ho-Yin Mak, Georgetown University; Christopher S. Tang, University of California, Los Angeles, and Tinglong Dai, Johns Hopkins University

China controls much of the global EV supply chain, but electric vehicles that use its parts and minerals won’t qualify for new US EV tax credits. Can America build its own supply chain?
Environmental, social and governance problems in a company’s supply chain can be hard for investors to track. KDP via Getty Images

ESG investing has a blind spot that puts the $35 trillion industry’s sustainability promises in doubt: Supply chains

Tinglong Dai, Johns Hopkins University and Christopher S. Tang, University of California, Los Angeles

Two supply chain experts see a major flaw in how ratings agencies measure companies’ environmental, social and governance performance.
The concern is about more than one shot vs. two. Michael Ciaglo/Getty Images

Backlash against Johnson & Johnson’s COVID‑19 vaccine is real and risky – here’s how to make its rollout a success

Tinglong Dai, Johns Hopkins University; Christopher S. Tang, University of California, Los Angeles, and Ho-Yin Mak, University of Oxford

Religious opposition over a link to abortions performed decades ago and misunderstandings about effectiveness could lead to a nightmare of angry patients and wasted vaccine.
In some states, getting a COIVD-19 vaccination appointment has felt like winning the lottery. Irfan Khan/Los Angeles Times via Getty Images

How to really fix COVID‑19 vaccine appointment scheduling

Tinglong Dai, Johns Hopkins University

Websites that crash. Appointments that fill up within seconds. Scheduling your COVID-19 vaccine shouldn’t be this hard. A few states have found a better way.
A health system in Virginia stopped using the federal website after only a few days, complaining that it was slow and crashed. Michael S. Williamson/The Washington Post via Getty Images

The US government’s $44 million vaccine rollout website was a predictable mess – here’s how to fix the broken process behind it

Tinglong Dai, Johns Hopkins University

The website has triggered random appointment cancellations and unreliable sign-ups. Only one contractor was deemed qualified to build it – and it wasn’t a major tech company. We’ve seen this before.
The airline industry has been cancelling routes because of the traffic drop-off during the pandemic. That has an impact on organ transplants. Michael Ciaglo/Getty Images

How the airline industry recovers from COVID‑19 could determine who gets organ transplants

Tinglong Dai, Johns Hopkins University; Guihua Wang, University of Texas at Dallas, and Ronghuo Zheng, The University of Texas at Austin

As policymakers weigh financial aid for the airline industry, they have an opportunity to help make the US organ transplantation system more equitable at the same time.

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