ADVERB (3)

1. with respect to economic science;
- Example: "economically this proposal makes no sense"

2. in an economical manner;

3. with respect to the economic system;
- Example: "economically the country is worse off"

The Collaborative International Dictionary of English v.0.48:

Economically \E`co*nom"ic*al*ly\, adv.
   With economy; with careful management; with prudence in
   expenditure.
   [1913 Webster]

WordNet (r) 3.0 (2006):

economically
    adv 1: with respect to economic science; "economically this
           proposal makes no sense"
    2: in an economical manner
    3: with respect to the economic system; "economically the
       country is worse off"

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "economically":
   briefly, cannily, carefully, charily, compendiously, concisely,
   curtly, frugally, husbandly, in brief compass, providently,
   prudently, shortly, sparely, sparingly, succinctly, summarily,
   synoptically, thriftily