AACSB does not accredit MBAs. It accredits schools. SIM is not accredited by AACSB.

PS Just to expand on this: AACSB has quite specific criteria: http://www.aacsb.edu/accreditation/business/standards/participants/standard10.asp

AACSB is technically a programmatic accreditor which accredits business schools. The School of Management at the University of Buffalo (State University of New York) is accredited by the AACSB. Its business programs are therefore accredited. The EMBA degree offered at the SIM is awarded by the University of Buffalo.

That's true. But I think it's a good and useful choice to not list partnership programmes that are not reallt part of the accredited school. The AACSB criteria assess schools' in their selection processes, their student facilities, their faculty development and so on. SIM clearly is not a unit of SUNY (The criteria are here http://www.aacsb.edu/accreditation/business/standards/scope.asp) and I think that both academics and employers will view it differently.

Yes, perhaps. But the EMBA at the SIM is taught and delivered by faculty from SUNY Buffalo. So the degree earned should not have any problems with employers, given that it has been ranked reasonably well by Financial Times.

In my opinion, that is too large an assumption. SUNY certainly has stronger roots in SIngapore than any other EMBA without a campus there, but I don't think it's reasonable to assume that outcomes and experience will be the same as for the alumni on campus. It's misleading, in my opinion, that the FT puts the two EMBAs together when they don't form one cohort or have the same curriculum.

Sure, but employers may well have their own opinions too. It does not necessarily follow that it would be a negative one.

Students enrolled in the University at Buffalo Executive MBA program in Singapore earn the same degree as those attending class in Buffalo, NY. All academic components of this program are fully directed by UB from admission decisions to curriculum development to course delivery to degree conferral. SIM manages the non-academic logistics of the program.
The Financial Times lists both locations because it is the same degree, with alumni from both locations surveyed in the ranking.

Why does the Singapore course have fewer courses and take less time?

The US-based program has 4 credits of professional development (Executive Development). The Singapore program provides professional development through guest speakers, panels and workshops, but its not for credit.
The US-based program is 20 months, the Singapore program has 20 months of coursework and 1 month for the final strategy project.
The main difference is the schedule. Singapore schedule is modular since the professors are flown out to teach, whereas the US-based program has classes spread over a semester.

Consequently, there is no major shift nor impact on the curriculum of the EMBA delivered in Singapore.