Increase and Decrease in Demand (Changes in Demand) | Free Economic Blogs

Increase and Decrease in Demand

Changes in Demand

When demand for a commodity increases or decreases due to changes in other factors and price remains constant, it is known as changes in demand.
It is of two types:

1) Increase in demand

It refers to an increase in quantity demanded due to favourable changes in other factors like tastes, income of the consumer, climatic conditions etc. and price remains constant. The demand curve shifts to the right-hand side of the original demand curve. This can be explained with the help of fig.

Increase in demand curve

As shown in fig. DD is the original demand curve. Demand curve shifts outward to the right from DD to D1D1 which indicates increase in demand.

Increase and Decrease in Demand
Increase and Decrease in Demand

2) Decrease in demand

It refers to decrease in quantity demanded due to unfavourable changes in other factors like tastes, income of the consumer, climatic conditions etc. and price remains constant. Demand curve shifts to left hand side of the original demand curve. This can be explained with the help of fig.

Decrease in demand curve

As show in fig. DD is the original demand curve. It shifts inward to the left from DD to D2D2 which indicates decrease in demand.

Khan Tauseef

Khan Tauseef is a commerce educator with 15+ years of teaching experience, specializing in 11th, 12th and degree students, subjects like BK, Financial Accounts, Cost Accounts, Economic, etc. across the commerce stream. He helps HSC and Mumbai University B.Com students gain strong conceptual clarity through well-structured notes, exam-oriented study materials, and practical learning strategies. His content focuses on syllabus-aligned preparation, university exam patterns, and effective revision techniques. Through his platforms, he continues to guide students toward confident learning and improved academic performance. We also have our YouTube channel to help HSC and Degree students throughout their academics.

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