Diseconomies of Scale

Diseconomies of Scale-Meaning

Diseconomies of scale happen when the size of the company or firm increases so large that the cost per unit increases. Once the production crosses a particular point in production, the process efficiency reduces.  Because of which the cost increases due to the inefficiency in production. In economics jargon, the diseconomies of scale happen when the average cost starts to increase. The average cost is the cost of production per unit of output.  It is computed by dividing the total of fixed costs and variable cost by the number of total units (fixed cost + variable cost / total output).

How Economies of Scale Leads to Diseconomies

It is the objective of every company to achieve economies of scale in its operations. This is with a view to achieve the optimum capacity utilization where the average cost per unit remains the lowest. Therefore, every company tries to achieve it and it remains a continuous process to reach the economies of scale. Few achieves it and few remains in the fray to achieve it. It is because of proper estimation of their costs before embarking on growth plans, and they efficiently manage the execution and growth momentum.  Proper and efficient management is the mantra for companies to grow without diseconomies of scale. All companies have to maintain proper balance in all areas of the business.

However, sometimes the same objective once crosses the optimum level or wrong projection leads to diseconomies of scale. The level of operating costs is the main trigger or indicator to determine whether there is a diseconomies of scale or not. Due to over-production or in order to cut down the production cycle time or due to crash costing, the operating cost for the production increases. And this leads to breeding of cost and work inefficiency due to the diseconomies of scale. In this phase, the company loose track of operating cost along with other costs and leads to a subtle hike in costs.

Costs that Creates Diseconomies of Scale

In this extra or higher production situation, many of the semi-variable costs turns fixed costs, or every additional resource can be arranged at a higher than the existing cost, or additional cost allocation per unit increases. All these conditions leads to an increased operating costs for production of additional units beyond the optimum production level.  Operational cost consists of two main costs, fixed costs that can be reduced but can not be eliminated altogether. Similarly, variable and semi-variable cost also increases due to increased production cycle, extra shift working, increased costs of repairs and maintenance, quality testing costs, production set up costs, etc. All these put together increases the average operating cost which starts seeing an upward trend.

Therefore, considering impact of all these costs,  it is clear how increased operational costs lead to diseconomy. On the one hand, fixed costs’ elimination not possible and on the other hand, variable cost increases with a rise in production. Hence, all associated and overall costs of the company increase.

Graphical Explanation of Diseconomies of Scale

Graph showing diseconomies of scale

This chart shows the average cost on Y-axis and represents Quantity, Q on X-axis, and the long run average cost curve. It is the average cost of per unit of output for a long period. The components of the curve are:

Economies of Scale

Here, the firm experiences the highest operational efficiency. The long-run average cost falls with an increase in production up to the optimum level. The left side of the curve shows economies of scale.

Constant Returns to Scale

No change in cost. Cost remains constant. In the graph, it happens at the point Q2. In this state, there is a stagnation of growth in costs or this is the optimum level of production. At this level the operating cost is the lowest.

Diseconomies of Scale

Here, the long-run average cost keeps increasing with an increase in production. In the graph, after the point Q2 (where there is stagnation of cost), the long-run average cost rises. It shows diseconomies of scale.


  • The growth and production are relative. So, use of machines increases. It negatively impacts the life of machinery due to damages. So, the installation and procurement of new ones became a prerequisite. Consequently, increasing costs.
  • Increased operation relatively increases production. As a result, it increases work. This leads to the employment of more workers to match increasing size requirements. Recruitment, selection, and training incur huge costs for the company.
  • Due to higher usage of the equipment, the repairs and maintenance costs also increases disproportionately.
  • Higher storage and carrying costs.
  • Various costs increases from point to point or in a level framework like electricity consumption, workers welfare costs, etc. Therefore, such costs lead to disproportionate increse in the cost per unit.

Reasons for Diseconomies of Scale

As we discussed above diseconomies of scale is mostly a company specific internal reasons. It is the operational inefficiency, defective management planning, wrong estimation of the costs and production levels, etc are the main reasons for such diseconomies of scale.

The external factors are very very limited ones.

Those can be when a similar kind of units at the same place start operating and thus the demand for workers, support services, rental and land costs, warehousing and transportation costs, etc see a sudden hike due to increased demand and supply shortage. Moreover, due to environmental issues all such polluting industries are put in a  specific zone so the distant location may increase the infrastructural costs beyond a point.

In simple terms, the growing operational inefficiency of the company leads to diseconomies of scale. It comes after the economies of scale are experienced.

Now, let us look into deep, internal, and external diseconomies.

Internal Diseconomies of Scale


Diseconomies due to stress on the production process asking for increased production by cutting cycle down average cycle time.  It happens due to the quick growth of the company, adaptation of which has not been planned well. Therefore, it results in more cost to produce additional goods or services.


When the workforce becomes larger and more difficult to manage, organizational diseconomies occur. Higher or additional workforce may be needing proper place, training, and various welfare activities, their proper time scheduling. In short time all this is very difficult to arrange which may lead to lower output per worker or per hour. These are inefficiencies that arise due to poorly managed increased work force.


In order to avoid production disruption or loose any business opportunity it is essential for the company to keep inventory at a sufficient level. For increased production the demand for such inventory items increases and to maintain a smooth availability at times the company needs to pay the higher cost for those items or that may be arranged from a different and distant location. It all leads to increased effective cost of purchasing. Moreover, this fluctuating availability also increases the carrying costs.


With the increase in the size of the firm, the need for a financial resource also rises. And such short term or beyond a reasonable level of funds arrangement increases the cost of funds in terms of higher interest charges leading to increased production costs for the company.


Marketing diseconomies also rises. Because the company is growing, they have to spend huge sums on marketing activities. Planning of marketing activities, hiring of new marketing staff, increase in marketing campaigns, entering into new terittory are the reasons for the increasing cost.

External Diseconomies of Scale

Limited Natural Resources

As the company grows large, the need for resources also rises. They require natural resources, labor, land, physical resources, etc. In turn, the availability of the resources reduces and the firm has to incur higher costs for procuring the same resources. Skilled labor become short in supply. As a result, a high salary offered to attract skilled labor. This induces additional cost.

Infrastructure Diseconomies

Sometimes local infrastructure has to bear the brunt of a growing company. As the company grows, it attracts more suppliers, employees, customers, and other stakeholders. The place converts into an industrial center. It puts a lot of pressure on the transportation facilities, roads and, other public infrastructures and services. For example, congested roads, traffic, overcrowding, and delayed supply of raw materials, etc.

Diseconomies of Pollution

Moreover, due to environmental issues all such polluting industries are put in a  specific zone so the distant location may increase the infrastructural costs beyond a point. Consequently, it increases water pollution, noise pollution, and soil pollution.

Solutions for Diseconomies of Scale

Yes, diseconomies of scale is an integral part of growing industrial production. To address such issue following are few ways that may be considered by the Management to reduce its impact:

  • Relocation of operations, that means to change the location of operation to reduce cost and increase operational efficiency.
  • Sub-Contracting  or job-contracting a part of the job.
  • Cut down and outsource part of the production process that is possible at a lesser cost outside as compared to the cost when it is done in-house. Sometimes, it reduces pressure on the man and machines and also have several secondary benefits.
  • Revamping the exissting Organization structure. This is to address the increased and decentralized requirements as the overall size of operation has increased.
  • The introduction of new and improved technology to improve the production process.
  • Outsourcing of some of the support services so that the firm can concentrate on its core operations.

Sanjay Borad

Sanjay Bulaki Borad

Sanjay Borad is the founder & CEO of eFinanceManagement. He is passionate about keeping and making things simple and easy. Running this blog since 2009 and trying to explain "Financial Management Concepts in Layman's Terms".

Leave a Comment