You hold: ♠ KJ4 ♥ A ♦ J876 ♣ 109632

There is not much to choose between a negative double and a response of one no-trump here. Put me down for double on the basis that if the next hand raises spades, I will be happy for partner to compete in a minor; otherwise, I will defend. I think an eight- or nine-card minor fit should play well here, and finding a minor-suit game will be easier after the double.