Fresh-made gefilte fish is hard to find this Passover season, because the harsh winter restricted fishing on the Great Lakes, sharply decreasing the supply of an essential input—whitefish. While this delicacy is not required by ritual, it is traditional—and with fresh-ground horseradish it is a mouth- (and eye-) watering treat. One would think that a rising price would equilibrate the market, but it hasn’t—apparently merchants did not want to antagonize customers by raising prices. Indeed, the nature-induced shortage in the market for fresh gefilte fish has increased the demand in the related market for the pre-made Manischewitz product, so that is hard to find too. Pretty sad when you can’t find gefilte fish even in Manhattan!