The Blog

Two ways to understand consumer demand: utility maximization and expenditure minimization, and how Shephard’s Lemma and Roy’s Identity connect them.

우리는 수십 년 동안 교사의 양적 확대에 돈을 써왔지만, 사실 필요한 것은 교사의 질적 향상이었다.

US markets gained on Monday, 2026-10-19, with the Nasdaq leading at +1.11%. Meanwhile, Korean markets continued recovery.

The week of October 12-16, 2026 was characterized as Global Risk-Off. US markets finished moderately lower with the S&P 500 at -1.89% and the Nasdaq at -4.06%. 1 of 7 Magnificent 7 stocks advanced on the week. Korean mar

US markets declined on Friday, 2026-10-16, with the Nasdaq leading at -2.15%. Meanwhile, Korean markets continued recovery.

US markets gained on Thursday, 2026-10-15, with the Dow leading at +1.08%. Meanwhile, Korean markets pulled back.