Alexis Akira Toda

Alexis Akira Toda

Mathematical economist

Essential Mathematics for Economics

less than 1 minute read

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My textbook, Essential Mathematics for Economics, is now published and sold at Amazon. It would be nice if somebody could write a review.

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Capital One Quicksilver 0% intro APR (4)

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In my post, I mentioned that I have been happy with the Capital One Quicksilver Card because it offered 0% intro APR for 15 months (and the card has no annual fee and gives 1.5% cash back on all purchases).

During the 0% APR period, I racked up nearly $30,000 of credit card debt. By doing so, my credit score went down from around 835 to 795. However, I paid off the debt last week before the end of the 0% APR period. A few days later, my credit score went back to 835. Now that the 0% APR period is over and the credit card offers only 1.5% cash back on everything (less than 2% with my Fidelity card), I contacted Capital One to switch from Quicksilver to Savor, which offers 3% cash back on dining and bakeries.

I highly recommend the card to anybody. If you open an account by clicking this link, you will receive an extra sign-up bonus.

Crowded airport lounges

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I often visit airport lounges, and a common experience is that they are crowded.

Income inequality at UCSD economics, 2024

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The University of California compensation data for 2024 is now published. I have updated the data set for my paper and rerun the regressions. For readers interested in predicting their salaries, the 2024 prediction equation is \[\log y = 12.20 -0.0096T + 0.0051N_\textrm{pub} + 0.0201N_\textrm{top5} + 0.2181D_\textrm{tenure} + 0.2601D_\text{full}, \] where \(y\) is the 9-month salary, \(T\) is the number of years elapsed since obtaining Ph.D., \(N_\textrm{pub}\) is the cumulative number of peer-reviewed research articles, \(N_\textrm{top5}\) is the cumulative number of top 5 publications, and \(D_\textrm{tenure}, D_\textrm{full}\) are dummy variables for tenure and full professor.