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Substance use and depressive psychiatric symptoms have been associated with migration and mobility. The Mexico-Guatemala border is a key transit point for internal, regional, and international migration flows. However, there is limited knowledge of the role of substance use, migration, and mobility on mental health among migrants at this border. Our paper explores the association of migration and mobility patterns with possible major depressive symptoms among migrants at this key geographic region. We recruited 392 substance-using migrants using modified time-location sampling. Crude and adjusted logistic regression models were developed. We found that 12% of the sample had possible major depressive symptoms. After adjusting for relevant covariates, including gender, income, and perceived homelessness, we found that recent rural-urban and short-term migrants had higher odds of possible major depressive symptoms, whereas international migrants had lower odds. Findings of this paper suggest that although migrants experience hardship and uncertainty, they may respond with complex and nuanced forms of coping and planning. [ABSTRACT FROM AUTHOR]

Pictorial health warnings (PHW) were introduced in Mexico by the end of 2010. Different studies have assessed how PHW influence attitude or desire to renounce smoking, but they have not studied the actual effect on the demand of tobacco products. Our objective in this paper is to analyze the effect of duration of pictorial health warnings on consumption of tobacco in Mexico. We assess the influence of different consecutive rounds of pictorial warnings, taking into account their length and the use of repeated images. We use a Dynamic Least Squares model (DOLS) with quarterly data (1994-2015), to estimate the long run demand of cigarettes in Mexico, as a function of per-capita income, the relative price of tobacco, different regulatory measures and the different rounds of pictograms, its duration, and the use of repeated images. We find evidence indicating that the pictorial health warnings have reduced consumption of cigarettes, that the effect has decreased in the last rounds, and that the most effective duration of the rounds is six months. PHW regulation deters consumption; however, its effectiveness decreases over time, suggesting that consumers tend to adapt to images. [ABSTRACT FROM AUTHOR]

Customer's trust in vendors' reputation is a key factor that facilitates economic transactions in e-commerce platforms. Although the trust-sales relationship is assumed robust and consistent, its empirical evidence remains neglected for Latin American countries. This work aims to provide a data-driven comprehensive framework for extracting valuable knowledge from public data available in the leading Latin American e-commerce platform with commercial operations in 18 countries. Only Argentina, Brasil, Chile, Colombia, Ecuador, Mexico, Uruguay, and Venezuela showed the highest trust indexes among all nations analyzed. The trust-sales relationship was statistically inconsistent across nations but worked as the most important predictor of sales, followed by purchase intention and price. [ABSTRACT FROM AUTHOR]