This newspaper’s comprehensive foreign media reports were reported on the official website of the Massachusetts Institute of Technology in the United States on June 7，Dave Donaldson, professor of the University’s Department of Economics、New research "Imported" by Arnaud Costinot and others、Exports and Income Inequality: Exposure Measurements and Incidence Estimates》Findings，International bet365 tennis bet increases income inequality in Ecuador。

　This study focuses on Ecuador’s personal income levels and the connection between national economic development and international bet365 tennis bet。Result display，Wealthy people benefit more from international bet365 tennis bet than middle-income people。It can be said，This is a structural effect of labor and capital allocation among high-income groups。In addition，Middle-income groups and low-income groups benefit from bet365 tennis bet to a similar extent。

Ecuador’s bet365 tennis bet structure has caused the above phenomenon。The country’s main export commodities and raw materials，This is more beneficial to the middle and lower income groups，Import activities are usually more beneficial to the already wealthier groups。To further understand the impact of international bet365 tennis bet on Ecuador，Researchers take a closer look at bet365 tennis bet-related economic activity。Data display，2009-2011，Oil exports account for the largest share of Ecuador’s total exports (54%)，Followed by fruits (11%)、Seafood (10%) and flowers (4%)。Ecuador’s imported products are mainly manufactured goods，Including machinery (21%)、Chemicals (14%)、Car (13%)。

This kind of "export primary products、The import-export structure of “imported manufactured goods” determines the relationship between bet365 tennis bet and rising income inequality in Ecuador。Employees are more educated、Businesses that also have higher wages benefit more from bet365 tennis bet，Because these companies are able to purchase manufactured goods at lower prices and grow。Costinault said，"Now，Most of the wealthiest people in Ecuador are employed by companies that directly import large quantities of products from abroad or purchase large quantities of products from other domestic companies。These companies reduce costs in this way，Improved the value of the services provided by our employees，The income gap widens”。

The research found，To a certain extent inconsistent with the expectations of established bet365 tennis bet theory。For example，Some early theoretical predictions，Opening the door to bet365 tennis bet will help create employment for a large number of low-skilled workers in Ecuador。Compared to developed countries，What Ecuador lacks is skilled workers，Therefore，Ecuador’s participation in international bet365 tennis bet will bring more benefits to low-skilled workers。However，From this study，That’s not the case。In addition，Some bet365 tennis bet theories involve the concept of "perfect substitutes": when similar products produced in different countries that can be substituted for each other circulate through bet365 tennis bet，Wage levels in these countries will converge，The reason is that since the same product is produced in the same way，The remuneration paid to workers should also be the same。But，The study shows，The “perfect substitutes” theory has insufficient explanatory power。Donaldson et al.，Although bet365 tennis bet patterns may gradually change，But Ecuador’s data from 2009 to 2015 is very stable，Reflects that people don’t change jobs often、There is no significant change trend in income distribution。

(Li Ling/Compiled)