Big Push Theory

Topics: Modern art, Big Push Model, Firm Pages: 1 (375 words) Published: May 26, 2013
The Big Push model

This note is intended to give a brief overview of a graphic presentation of the Big Push model. We have an economy with a large number of sectors. Each sector is so small that what happens in one sector has no impact on the economy as a whole. There are a total of L workers and N sectors, so there are L/N workers in each sector. Each sector can either use a traditional or a modern technology. Using the traditional technology, one worker produces one unit of goods, so the sector would produce an amount equal to L/N. The modern sector requires F workers for administrative tasks, but the remaining workers produce more than one unit of goods per worker. This is depicted in the figures, where T is the production in the traditional sector an M the production in the modern sector. The way it is drawn, production is higher with modern than with traditional technology if we have L/N workers. In the traditional sector, workers get paid one unit of goods for their work which they spend equally in all sectors. Hence if all workers are working in the traditional sector, demand towards all sectors is Q1=L/N. In the modern sector they get paid more. Each worker costs w, which we will look at more closely. Consider first w1, which is a low wage. A firm facing demand Q1 will require L’ workers of it choose the modern technology. This will cost w1L’, and earnings will be Q1. The way w1 was chosen, we see that w1L’Q1. Hence the firm will not choose to modernize if nobody else does. If all the others have modernized, though, the firm faces demand Q2. In that case, it will choose to modernize as well. This is because it would now make a profit as w2 is chosen so that w2L/NQ2. This case is shown in Fig. 5.2 in the book. The most interesting case is w2 though. Then we have a coordination problem as firms want to modernize if everybody else does, but they do not want to be the first to modernize. Hence we can get both a modern and a traditional equilibrium.
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