近期重要研究成果

Durable Goods, Investment Shocks and the Comovement Problem (with Shian-Yu Liao, published in JOURNAL OF MONEY, CREDIT AND BANKING)

作者 陳明郎
廖先昱
摘要 Recent research based on sticky-price models suggests that capital investment shocks are an important driver of business cycle fluctuations. Despite their quantitative importance in
explaining business cycles, a comovement problem emerges because the shocks generate an intertemporal substitution effect away from consumption toward investment. This paper resolves the comovement problem by extending the standard neoclassical sticky-price model to a two-sector model with consumer durable services. When durable goods are used as investment in capital and consumer durables, positive capital investment shocks also generate an intratemporal substitution effect away from consumer durable services toward nondurable consumption that dominates the intertemporal effect. As a result, consumption increases, and the comovement problem is resolved.