Pengaruh Jenis Diversifikasi Usaha Terhadap Kinerja Perusahaan

The purpose of this research is to examine the effect of operational cost, leverage, and company size toward profitability in related and unrelated diversification company and to observe any differences between variables. Sample of this research was collected from all listed company in Bursa Efek Indonesia during period 2006-2010. Data analysis is using multiple regression and random effect method. The result of research indicated that operational cost, leverage, and company size have an impact toward profitability and all of the variables are different to each other group of samples.