The main advantage of large scale production is that

The main advantage of large scale production is that the unit cost of production falls. This is because when a company produces goods in large quantities, it benefits from economies of scale. These economies of scale mean that the average cost of production decreases as output increases, due to factors such as the ability to purchase raw materials in bulk, division of labor and specialization, and the use of machinery and technology. As a result, the cost per unit decreases, allowing the company to produce goods at a lower cost and potentially sell them at a lower price or earn a higher profit margin.