Moving the Whole Curve. Price fluctuations only cause demand to shift along the curve; they can’t change the curve’s overall position. For the entire curve to change positions, consumer demand has to increase or decrease at all price points simultaneously. Price alone can’t do that.
http://smallbusiness.chron.com/cause-movement-along-demand-curve-shoes-74546.html
Shift in the Demand Curve. A shift in the demand curve occurs when the whole demand curve moves to the right or left. For example, an increase in income would mean people can afford to buy more widgets even at the same price.
http://www.economicshelp.org/blog/581/economics/changes-in-demand/
If there is a change in price, there is a movement along the demand curve. An increase in price, P1 to P2 causes a change in quantity demand from Q2 to Q1. A change in price doesn’t shift the demand curve – we merely move from one point of demand curve to another.
http://www.economicshelp.org/blog/581/economics/changes-in-demand/
The Role of Supply. Sometimes what seems like a shift along the demand curve is actually a shift in the overall position of the supply curve. When economic factors make shoes more or less expensive to produce, the entire curve can shift as a result.
http://smallbusiness.chron.com/cause-movement-along-demand-curve-shoes-74546.html
7.If the price of good X increases from $5 to $6, the total revenue earned increases from $600 to $690. Based on this information, the price elasticity of demand over this range in output is. elastic. unit elastic.
http://www.chegg.com/homework-help/questions-and-answers/1-factors-cause-movement-along-demand-curve-include-increase-level-advertising-decrease-pr-q3908191
Advertisements: Read this article to learn about the movement along the demand curve: When quantity demanded of a commodity changes due to a change in its price, keeping other factors constant, it is known as change in quantity demanded. It is graphically expressed as a movement along the same demand curve.
http://www.yourarticlelibrary.com/economics/the-movement-along-the-demand-curve-change-in-quantity-demanded-economics/8926/
If there is an increase in price of petrol, there would be a movement along the demand curve and a smaller quantity would be bought.
http://www.economicshelp.org/blog/581/economics/changes-in-demand/
Downward Movement: On the other hand, fall in price from OP to OP 1 leads to an increase in quantity demanded from OQ to OQ 1 (known as expansion in demand), resulting in a downward movement from A to B along the same demand curve DD. Let us now understand the meaning of Expansion and Contraction in demand.
http://www.yourarticlelibrary.com/economics/the-movement-along-the-demand-curve-change-in-quantity-demanded-economics/8926/
3.4, OQ quantity is demanded at a price of OP. Change in price leads to an upward or downward movement along the same demand curve: Upward Movement: When price rises to OP 2, quantity demanded falls to OQ 2 (known as contraction in demand) leading to an upward movement from A to C along the same demand curve DD.
http://www.yourarticlelibrary.com/economics/the-movement-along-the-demand-curve-change-in-quantity-demanded-economics/8926/
There is movement along a demand curve when a change in price causes the quantity demanded to change. It is important to distinguish between movement along a demand curve, and a shift in a demand curve. Movements along a demand curve happen only when the price of the good changes. When a non-price determinant of demand changes the curve shifts. These other variables are part of the demand function.
https://en.wikipedia.org/wiki/Demand_curve
what causes a movement along the demand curve
A movement along the demand curve will occur when the price of the good changes. Change in the price of the good causes a movement along the demand curve.