文献有点多，谢谢热心人！

1、Plant-level adjustment and aggregate investment dynamics
http://www.jstor.org/pss/2534611

2、Is Lumpy Investment Relevant for the Business Cycle
http://www.jstor.org/pss/10.1086/339746

3、Machine Replacement and the Business Cycle: Lumps and Bumps
The American Economic Review, Vol. 89, No. 4 (Sep., 1999), pp. 921-946

http://www.jstor.org/pss/117165?searchUrl=%2Faction%2FdoBasicSearch%3FQuery%3Dau%253A%2528russell%2Bcooper%2529%2Bmachine%26gw%3Djtx%26prq%3Dau%253A%2528russell%2Bcooper%2529%26hp%3D25%26wc%3Don&Search=yes

4、The Aggregate Implications of Machine Replacement: Theory and Evidence
The American Economic Review, Vol. 83, No. 3 (Jun., 1993), pp. 360-382
http://www.jstor.org/pss/2117523?searchUrl=%2Faction%2FdoBasicSearch%3FQuery%3Dau%253A%2528russell%2Bcooper%2529%2Baggregate%26gw%3Djtx%26prq%3Dau%253A%2528russell%2Bcooper%2529%2Bmachine%26hp%3D25%26wc%3Don&Search=yes