As the purely competitive companies follow the rule of maximizing profits by producing the volume of the price evenly with marginal cost, they provide compatible socical costs of the production with social benefits from production of a product.

Long term balancing corresponds to two imporant conditions in perfectly competitive markets: allocation productivity and efficient productivity. These conditions has important effects. First of all, the sources are allocated to the best alternative utilizations and second of all, they provide maximum pleasure of the society.
MES software platforms provide productivity and quality assurances. Lean production and increasing performance are the basic concepts in all kind of manifacturings with market demands and today’s competition. Production Application System (MES) helps your business in increasing productivity and competitive capacity. Tracking productivity and monitoring provides online intervention and this builds the approach of marginal cost. Also providing competition average and the target realization in target markets.
MES is the indicative factor from strategical location to target markets.

Resource: https://www.khanacademy.org/economics-finance-domain/ap-microeconomics/ap-perfect-competition-topic/ap-perfect-competition/a/efficiency-in-perfectly-competitive-markets-cnx