Barter and its problems, the functions of money, coins from panas to annas, paper money, the ₹ symbol and digital payments.
| Functions of money | medium of exchange, store of value, measure of value, standard of deferred payment |
| Old rupee | 1 rupee = 16 annas |
| Official paper money in India | from 1861 |
| ₹ symbol | adopted 2010; designed by Udaya Kumar |
| UPI | in use from 2016 |
| Issues currency | the Reserve Bank of India |
| Barter today | the Junbeel Mela in Assam |
The Arthashastra says a yearly salary of 60 panas could be replaced by about 3 kg of grain a day. (a) How many panas would 16 years of salary be? (b) How much grain is that, at 1,095 kg a year? (c) The fine for not helping a neighbour was 100 panas. What does that show?
Working: 60 × 16; 1,095 × 16
Answer: (a) 960 panas (b) 17,520 kg (c) Helping others was valued so highly that refusing cost more than a year’s salary.