Essential Mathematics for Economics

less than 1 minute read

Published: April 08, 2024

I finished writing the draft of my forthcoming textbook “Essential Mathematics for Economics”. The book is based on my math camp teaching material. Please let me know if you have any comments on the draft.

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Farewell, Citibank

1 minute read

Published: December 26, 2024

As part of reviewing my finances, this year I closed my Citibank checking account, which I have had since coming to the U.S. in 2008.

Cost-benefit analysis of credit cards

5 minute read

Published: December 25, 2024

As the year end approaches, I downloaded the transaction history of my credit cards to analyze the cost and benefits.