Competition and price transmission in the production of nopal in Milpa Alta, Mexico City, and Tlalnepantla, Morelos
DOI:
https://doi.org/10.22231/asyd.v19i2.1341Keywords:
Milpa Alta, Tlalnepantla, vector autoregressive (VAR), price transmission, effects of the amounts of production on the pricesAbstract
The objective of the study is to determine whether there are anticompetitive practices in nopal production between the producing zones of Tlalnepantla, Morelos, and Milpa Alta, Mexico City. The hypothesis is that the amounts of production in the production zones of Milpa Alta and Tlalnepantla determine the process of price formation in both markets. The procedures were vector autoregressive models (VAR) and vector error correction models (VECM) applied to two sub-periods, 2000-2005 and 2006-2017. The results indicate that symmetry in price transmission was modified considerably between both periods, that is, that the price coefficients and amounts from Morelos in the first model (0.54317 and -0.00602) indicate that the price ratio between producing zones was not symmetrical and that production from Morelos affected marginally the price formation process between zones. However, the parameters obtained in the models of the second period indicated a practically symmetrical ratio, with a coefficient of 0.980452 for prices from Morelos. Likewise, the coefficient of the amounts of production from Morelos went from marginal to considerable (-0.635184), which implies effects by the market power of one over the other.
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