CompArED to normAl mArkEts, thE ExistEnCE oF FrAuD AnD thE usE oF violEnCE in BlACk mArkEts gEnErAlly lEADs to:
A．

A. poorEr EConomiC EFFiCiEnCy.

B．

B. supErior EConomiC EFFiCiEnCy.

C．

C. lowEr proFit rAtEs For sEllErs.