What happens to equilibrium during the rise and fall of a fad?

The rise and fall of a passing fad can cause a failure of balance and supply and demand of a product.

The rise of a fad can create a high demand for the product, that is, a high demand for the merchandise; and can cause a low supply, that is, the industry can not produce enough to supply people's demand for the goods. In this way the balance is impaired

On the other hand, the fall of a fad, can create a high supply of the product by the industries, but as the fad passed, people do not look for this product anymore, that is, the demand is low to receive the offer. This also damages the balance.

the industrial development of cities in the ruhr area in the nineteenth century is described. the research was based on english and german language sources. several factors that shaped growth and paths of the cities were categorized and analyzed. they are locations, resources, traditions, entrepreneurs, and technological developments. locations and resources were the most important among them; other factors may be regarded as consequences from locations and resources. among the cities, bochum, essen, gelsenkirchen, and dortmund had the richest resources and most favorable locations in the transportation network and grew to be the largest cities in the ruhr area near the end of the nineteenth century. riverside location was also a favorable factor for the development, as shown in the development of duisburg on the confluence of rhine and ruhr. resource distribution can explain the rise of textile industry, metallurgical industry, and coal and iron industries, and the northward progression of the mining industry. tradition was an important factor for cities such as krefeld, barmen, elberfeld, solingen, and remscheid, which experienced development based on their traditions through the nineteenth century. various entrepreneurs exerted influences within and beyond the local level over the ruhr area. technological development stimulated the northward progression of the mining industry and the deep connection between the coal and the iron industries.

bujías y una hora antes y no me parece muy difícil