“…Research on passive and active learning stochastic control of economic models has been underway for more than thirty years dating back to the early work of Prescott (1972), MacRae (1972) and Taylor (1974) and including work by Norman (1976), Kendrick (1976Kendrick ( , 1980Kendrick ( , 1981, Easley and Kiefer (1988), Kiefer (1989), Kiefer and Nyarko (1989), Tucci (1989), Mizrach (1991), Aghion et al (1991), Amman (1996), Amman andKendrick (1995, 1997), Wieland (2000aWieland ( , 2000b, Beck and Wieland (2002), Tucci (2004), Cosimano andGapen (2005b, 2005a), Cosimano (2008), Tesfaselassie, Schaling and Eijffinger (2007) and others. What have we learned about learning from this research?…”