In particular, a perfectly competitive firm's marginal cost curve is also its supply curve.This conclusion, however, only applies to perfect competition. Firms operating in market structures that do not equate price and marginal cost, but rather equate marginal revenue and marginal cost.s such, the marginal cost curve is not the supply curve for the firm.Long-Run ProductionIn the long run, with all inputs variable, a perfectly competitive industry reaches equilibrium at the output that achieves the minimum efficient scale, that is, the minimum of the long run average cost curve.
A tutor is an instructor who gives private lessons. Shadow education is a name for private supplementary tutoring that is offered outside the mainstream education system. Normally, a tutor will help a student who is struggling in a subject of some sort. Also, a tutor may be provided for a student who wants to learn at home.
1 Online tutoring can range from $15 to $75 per hour, depending on the service that is used. 2  Group tutoring that is ideal for those in a classroom can be significantly lower as the group will pay the tutor. 3  This can vary from $15 to $20 per person. 4  The group can consist of 3 to 6 or more people. math tutor is a person who specializes in math and is employed in helping educate others. Before the wide availability of the internet, tutoring required the personal presence of the tutor. Today, there are online tutoring sessions available with the help of the internet.