Alan Erera

Georgia Tech MS in Supply Chain Engineering students stand in front of the Atlanta headquarters for the Norfolk Southern railroad.

Did you know that the headquarters for one of the big 4 US railroads is just a short walk from Georgia Tech?

Norfolk Southern hosted our MS in Supply Chain Engineering students for a tour of their Network Operations Center and gave us an overview of modern freight railroads!

#logistics

In logistics, perhaps the most important idea is that inflows must balance outflows.

If $ consistently flow out of a nation without growing inflation, ask yourself: where did those $ come from?

Yay, saw your specific influence in 43D

Whoop!

A frustration about grant "overhead": shocking rates!! Grant funding F = D + I, where D are directs. I is computed (rate)*D_elg, and eligible directs D_elg < D. So, a rate of 50% seems very high (half of grant!) Nope. Ex: D=100, D_elg=80, so I=40 and F=140. So indirect is (40/100)=28.5% of grant.

Tariffs seek to raise prices on produced metals so US producers are competitive. Demand for steel-intensive items should go down, and some products (like cars/trucks) may be redesigned to use less. An overall economic drag and fewer large vehicle sales will reduce carbon emissions, yay! #logistics

Trade tariffs create supply chain costs, and new costs distort SCs and markets. Tariff-engineered distortions may have political goals, including raising revenue. But why is "reducing a trade deficit" a goal, when a deficit means net foreign investment which seems preferable to the alternative!

Alan Erera on LinkedIn: Tariffs and Trade There is continued discussion in Congress of new trade tariffs on US goods imports in the range of 10-25%, possibly independent of country-of-origin but in any…

Tariffs are a supply chain cost. Impacts seem difficult to predict, but experiments is coming with outcomes that could be compared to models. Are we ready? #logistics

Consider following @informs.bsky.social !
#orms

Here's the modern logic: students don't have watches, only mobile phones, but instructors restrict mobile phone use during exams, thus we project the ticking clock!

Why 2023 was the year of the e-bike and not the self-driving car E-bikes and self-driving cars both entered the year with momentum. Only one maintained it.

In terms of mobility, e-bikes are selling faster & having bigger effects on emissions than EVs, much less self-driving EVs. And yet they get vastly, vastly less attention.

www.fastcompany.com/90994141/why...

Latest news from @ai4opt.bsky.social

Thanks for sharing. I think a MARTA network with higher frequencies and less coverage is sensible given present budget realities. I haven't studied ridership, but the eye test on low-frequency routes around my neighborhood reveals very few riders...

Alan Erera on LinkedIn: #orms #iise We have been working with the design team since 2019 on this ambitious TS3 project since ISyE will fully relocate to the George Tower in 2026! In the…

We are building an ambitious new home for Georgia Tech ISyE in midtown Atlanta.

Y’all come visit in 2026, ok?

#orms

Some features of the building include:
* faculty and student research labs on shared floors to promote engagement
* 15th floor seminar room with indoor/rooftop pre-function gathering space
* bicycle storage room and shower/changing rooms

Alan Erera on LinkedIn: #orms #iise We have been working with the design team since 2019 on this ambitious TS3 project since ISyE will fully relocate to the George Tower in 2026! In the…

We are building an ambitious new home for Georgia Tech ISyE in midtown Atlanta.

Y’all come visit in 2026, ok?

#orms

Some news from Atlanta… Pinar Keskinocak will be next head of Georgia Tech ISyE, leading our group of nearly 70 faculty! 🎉
#orms

A very late comment: Irv Lustig in your photo taught me C programming over 30 years ago, a fantastic instructor! #orms

Great! Your message reminds me that I maybe should have refreshed my website before linking it here, but hopefully even more useful content there soon!