Diether klingelnberg , chairman of machine maker klingelnberg , sees a bigger problem in germany 's shortage of engineers .
机床制造商klingelnberg董事长迪特尔克林格恩伯格认为德国工程师短缺是个更大的问题。
A new nber working paper * , by lauren cohen and christopher malloy of harvard business school and karl diether of dartmouth college , shows how ordinary investors can alsoget in on the actionby predicting the impact of new legislation on american firms .
