Robiyanto, Robiyanto
* Corresponding Author
Faculty of Economics and Business, Diponegoro University
Indonesia

Robiyanto is a Ph.D. in Finance candidate at the Doctoral Program of Economics, Faculty of Economics and Business, Diponegoro University, Semarang, Indonesia, and he hold a master of management degree in Finance (2000) from the same university. His first degree in Management (1998) was achieved from Satya Wacana Christian University, Salatiga, Indonesia. He holds an Investment Manager Representative license and Broker Dealer Representative license from Indonesia Financial Service Authority (previously Indonesia Capital Market Supervisory Agency). Working at Samator Group in Corporate Planning Division. Active as a academic researcher. His research interest are capital market, commodity market, market efficiency, corporate governance, and portfolio management.
Author’s contact details: Doctoral Program, in Economics, Diponegoro University, Jalan Erlangga Tengah No. 17, Semarang 50241, Indonesia; e-mail: robiyanto76@gmail.com.    

Siti Puryandani
https://www.scopus.com/authid/detail.uri?authorId=57144570600

Scopus ID: 57144570600; Faculty of Economics and Business, Diponegoro University
Indonesia

Puryandani, Siti is a Ph.D. in Finance candidate at the Doctoral Program of Economics, Faculty of Economics and Business, Diponegoro University, Semarang, Indonesia. Holds a master degree in Finance (2002) from the Gadjah Mada University, Yogyakarta, Indonesia. Her first degree was achieved in Management Economics (1995) from Muhammadiyah University, Malang, Indonesia. She had spend more than 17 years as a lecturer in STIE Bank BPD Jateng, Semarang, Indonesia during her professional career. Active as an academic researcher. Her reserach interest are capital structure, corporate governance and financial management for small business. Being a mentor for around 1,000 students, she had to deal with many social aspects associated with them.
Author’s contact details: STIE Bank BPD Jateng, Jalan Pemuda No. 4A, Semarang 50132; e-mail: sitipuryandani@yahoo.com