His research focuses on liquidity in financial markets and stock-price modeling. He earned a B.Sc (Magna Cum Laude) in industrial engineering and an M.Sc (Summa Cum Laude) in operations research, both from Tel-Aviv University. He received his Ph.D. in finance from Northwestern University (Kellogg). Prior to joining the Finance Department at Boston College, he taught at the University of Chicago (Booth), New York University (Stern), Northwestern University (Kellogg), and the University of Washington (Foster). His industry experience includes Goldman Sachs Asset Management and Lehman Brothers (quantitative strategies). Sadka is currently a member of the economic advisory board of NASDAQ OMX.