#marginal cost
2 stories

Power Division projects Rs2.56 per unit increase in Nov bills
Power Division says Nov bills rise by Rs2.56/unit after load management averts bigger hike.
Dawn · 2m

Boomers Hold $90T in G-Shaped Economy, Social Security Taxable at 70
At 70, boomers' cash earns interest that silently taxes Social Security benefits via 1984 IRS formula.
24/7 Wall St. · 1m