From my (maybe naive) understanding of current economic theory, it's that a small amount of inflation is what grows an economy. And an important part of that is

From my (maybe naive) understanding of current economic theory, it's that a small amount of inflation is what grows an economy. And an important part of that is unpredictable levels of inflation/deflation. So I'd assume a small amount of predictable deflation would shrink an economy. Anyone know more about this?