Service modularization is gaining increasing attention from scholars and practitioners. However, it must be noted that the essence of service modularization is still not well understood, and its purposefulness of practical application has not yet been well explored. This conceptual paper...

Service modularization is gaining increasing attention from scholars and practitioners. However, it must be noted that the essence of service modularization is still not well understood, and its purposefulness of practical application has not yet been well explored. This conceptual paper...

Portfolios that are risk-return efficient in the sense of Markowitz sometimes contain too many securities to be attractive to the small investor. An optimal portfolio subject to a size constraint can be found by an implicit enumeration algorithm, that is much faster than a previous approach and...