considered non-tradeables. We relied on the database sources used to construct the monthly commodity prices of the World Bank’s Pink Sheet and the International Monetary Fund (IMF) Commodity Prices databases. Given that our database contains bimonthly prices, the sources mentioned above were used only as reference in finding more frequent price collection. For goods that did not appear on any of the World Bank and IMF databases, we collected international prices from the US Department of Agriculture (USDA), Market News. We used shipping point prices for the most common varieties and presentation in which goods are sold. These shipping point prices represent first on board (FOB) prices of open market (spot) sales by first handlers at point of production or port of entry on products of generally good quality and condition. The USDA data may not always represent a world price but the specificity and high frequency of the price data collection makes it a valuable source. Also, this database contains at least an international price of a country that happens to be Mexico’s most important trade partner. Table 3 contains a description of the data gathered.

Table 3. International prices database description

|**Good**|**Intl' price**<br>**available?**|**Description**|**Country** **of** **origin**|**Unit** **of** **measure**|**Source**|
|---|---|---|---|---|---|
|Beans<br>Rice|<br>|US average bid price|US|100 lb bag|US Department of Agriculture|
|Bolillo bread||||||
|Concha bread||||||
|Corn tortilla*|<br>|US (Gulf), Maize (US No. 2, Yellow)|US|per tonne|FAO|
|Eggs<br>Milk||Shell Eggs: Weekly Combined Regional||||
|Water<br>Soda||||||
|Beef||CIF US import price|Australia|per lb|Meat and Livestock Australia|
|Chicken||FOB broiler/fryer prices|US|per lb|US Department of Agriculture|
|Pork||Lean Hogs Futures (HEZ6)|US|Per tonne|investing.com|
|Apple||Shipping point average price|US|36 & 40 lb carton|US Department of Agriculture|
|Banana||US East Coast ‐ Main Brands, f.o.r.|Central America|per tonne|FAO, The World Bank|
|Guava||||||
|Lime||Shipping point average price|Mexico|40 lb carton|US Department of Agriculture|
|Muskmelon||Shipping point average price|Brazil, Central America, Mexico, US|30 & 40 lb carton|US Department of Agriculture|
|Orange||Shipping point average price|US|38 lb carton|US Department of Agriculture|
|Papaya||Shipping point average price|Brazil, Central America, Mexico|25, 40 lb carton; 3.5 kg container|US Department of Agriculture|
|Pear||Shipping point average price|Argentina, Chile, US|45 lb carton; 18 kg container|US Department of Agriculture|
|Pineapple||Shipping point average price|Central America, Mexico|20 lb carton|US Department of Agriculture|
|Plantain||US East Coast ‐ Main Brands, f.o.r.|Central America|per tonne|FAO, The World Bank|
|Watermelon||Shipping point average price|Central America, Mexico, US|Several packages, price per lb|US Department of Agriculture|
|Avocado||Shipping point average price|Mexico, Chile, Peru|23 lb carton/flat|US Department of Agriculture|
|Cabbage||Shipping point average price|US|50 lb carton|US Department of Agriculture|
|Carrot||Shipping point average price|Mexico, US|25 & 50 lb sack|US Department of Agriculture|
|Chayote||Shipping point average price|Central America, Mexico|20 & 40 lb carton|US Department of Agriculture|
|Cucumber||Shipping point average price|Central America, Mexico, US|55 lb carton|US Department of Agriculture|
|Jalapeño pepper||Shipping point average price|Mexico|28 lb carton|US Department of Agriculture|
|Lettuce||Shipping point average price|US|40 & 50 lb carton|US Department of Agriculture|
|Onion||Shipping point average price|US|25 & 50 lb sack|US Department of Agriculture|
|Poblano pepper||Shipping point average price|Mexico|28 lb carton|US Department of Agriculture|
|Potato||Shipping point average price|US|50 lb carton/sack; 2000lb sack|US Department of Agriculture|
|Serrano pepper||Shipping point average price|Mexico|28 lb carton|US Department of Agriculture|
|Tomatillo||Shipping point average price|Mexico|40 lb carton/container|US Department of Agriculture|
|Tomato||Shipping point average price|Mexico, US|20 & 25 lb carton/flat|US Department of Agriculture|
|Zucchini||Shipping point average price|Mexico, US|21 & 28 lb carton|US Department of Agriculture|
|Salt||||||
|Sugar||US Sugar # 11 futures (SBH7)|US|per lb|investing.com|
|Cooking oil||Soybean oil futures (ZLZ6)|US|per lb|investing.com|
|Cement||||||

# Market structure and competition data

We tracked sanctions imposed by COFECE, Mexico’s competition agency to study prices in markets with possible competition issues. The voluminous set of documents on investigations, resolutions and opinions on competition matters was used to identify markets 12