Capital–Skill Complementarity and Inequality in Sweden
研究了瑞典1980-1990年代收入不平等加剧的原因，发现资本-技能互补性导致对高技能劳动力的需求增加，从而拉大了高低技能工人间的收入差距。
Abstract Income inequality increased in Sweden during the 1980s and 1990s, as did the returns to higher education. The main conclusion of this study is that increased income inequality between high‐ and low‐skilled workers is demand driven and is due to the presence of capital–skill complementarity in production. Increased investments in new, more efficient capital equipment, along with a slowdown in the growth rate of skilled labor, have raised the ratio of effective capital inputs per skilled worker, which, in turn, has increased the relative demand (and market return) for skilled labor through the capital–skill complementarity mechanism.