Editor
The halo effect of the Metropolitan Museum of Art’s Met Gala and the annual opening of the Costume Institute’s spring exhibition is undeniable.
But even with the red-carpet celebrity-studded extravaganza still a few days away, some Upper East Side businesses are already banking on gains. In addition, the fact that the focus of this year’s show — Karl Lagerfeld — had such an extended portfolio and multibrand affiliations is…
