Learning Contents:                                                              ·              Impact of rise in input price on supply of the firm. ·              Impact of fall in input price on supply of the firm. The role of inputs or factors of production is very crucial for the production of the goods or services.   Inputs such as raw material, machinery, land, and, labor are most commonly used inputs in the production process.   Therefore, production is mainly dependent on the inputs.   A change in input price will not only impact the production cost but affect the supply as well. If production cost rises owing to rise in input cost will further decrease the supply of the firm, whereas, If production cost falls owing to fall in input cost will further increase the supply of the firm. Hence, the impact of change in input price on the supply curve can be understood into two categories as below: 1. Impact of rise in input price on supply of the firm. A rise in input cost