e·con·o·met·rics 
(ĭ-kŏn′ə-mĕtrĭks)
(ĭ-kŏn′ə-mĕtrĭks)n. (used with a sing. verb)
Application of mathematical and statistical techniques to economics in the study of problems, the analysis of data, and the development and testing of theories and models.
[ECONO(MICS) + -METRICS.]
e·con′o·metric, e·con′o·metri·cal adj.
e·con′o·metri·cal·ly adv.
e·con′o·me·trician (-mĭ-trĭshən), e·con′o·metrist n.