Arthashastra
विक्रिये पण्यानाम् अर्घ वृद्धिर् उपजा, मान उन्मान विशेषो व्याजी, क्रय संघर्षे वार्ध वृद्धिः इत्य् आयः ॥
The rise in price of merchandise due to the use of different weights and measures in selling is termed vyáji; the enhancement of price due to bidding among buyers is also another source of profit.
english translation
vikriye paNyAnAm argha vRddhir upajA, mAna unmAna vizeSo vyAjI, kraya saMgharSe vArdha vRddhiH ity AyaH ॥
hk transliteration by Sanscript