The distinction between productive and unproductive has many meanings -- Even Marx was not entirely consistent. A golf course or a meth lab can be productive in the sense of producing surplus value.
On a different level of abstraction, an economy devoted exclusively to catering to the domestic rich, might be likely to fall behind, although an economy like Dubai with some trendy cache might prosper -- until some newer, more trendy spot pops up. -- Michael Perelman Economics Department California State University Chico, CA 95929 Tel. 530-898-5321 E-Mail michael at ecst.csuchico.edu michaelperelman.wordpress.com