というNBER論文が上がっている(ungated版)。原題は「Are Big Cities Important for Economic Growth?」で、著者はMatthew Turner(ブラウン大)、David N. Weil(同)。 以下はその要旨。 Cities are often described as engines of economic growth. We assess this statement quantitatively. We focus on two mechanisms: a static agglomeration effect that makes production in bigger cities more efficient, and a dynamic effect whereby urban scale impacts the prod