Over at Not Sneaky they are discussing how a higher minimum wage may lead to higher employment when we have a firm that has market power in the labour market (hat-tip CPW). The argument is a very interesting one as economists often view a minimum wage as a way of placing a price floor, which leads to a lower level of employment and social ‘surplus’.
On the blog he uses this fine graph to explain the result. The purple line illustrates the path of wages and employment. According to that, there is a range where higher wages create greater employment in the labour market. Let me attempt to explain this.