If you extend the wage from the perfectly competitive labour market across to the monopsony labour market, you can see that the wage in perfect competition is higher than it is in monopsony. if an employer has to compete with lots of other employers to attract labour, they will have to set a higher wage. If there is only one employer in the labour market (monopsony), they don’t have to compete with other employers to attract labour and so they pay a lower wage and hire fewer workers. This means that employment and wages are both lower in a monopsony labour market.