In a perfectly competitive market,

Marginal Revenue Product of Labor (MRPL) is equal to Value of the Marginal Product of Labor (VMPL) Marginal Revenue Product of Labor (MRPL) is not equal to Value of the Marginal Product of Labor (VMPL) Marginal Revenue Product of Labor (MRPL) is greater than Value of the Marginal Product of Labor (VMPL) Marginal Revenue Product of Labor (MRPL) is leases than Value of the Marginal Product of Labor (VMPL)

Marginal Revenue Product of Labor (MRPL) is equal to Value of the Marginal Product of Labor (VMPL)

In a perfectly competitive firm, marginal revenue is equal to the price of the commodity and hence marginal revenue product of labour (MR * MPL) in this case is equal to the value of marginal product of labour (VMPL), i.e. P * MPL.