When money's tight, what makes women spend thousands on clothes? No one knows, but that's certainly no impediment to authoritative-sounding speculation when there are column inches to be filled. So, even though fashion designers plan fabrics and colors many months in advance of their shows, everyone has been eagerly interpreting new collections in light of the economy, mostly claiming that the bright, cheerful designs seen on the runway—like Betsey Johnson's—reflect a desire to detract from the gloom of dire financial prospects.