| Abnormal Return || CRSP || A1
|-
| Average Return || CRSP || STATA Later
|-
| Weighted Average Return || CRSP || STATA Later
|-
| Cumulative Ab. Return || CRSP || A1
| Previous Acquisitions || SDC || SDCA4
|-
| Sales || Compustat || SDCv2SDCA4
|-
| Tobin's Q || Compustat || tobinxcompxsdcboom