Aerenchyma attributes plant tissues that contain enlarged spaces exceeding those commonly found as intracellular spaces. It is known that sulfur (S) deficiency leads to formation of aerenchyma in maize adventitious roots by lysis of cortical cells. Seven-day-old maize plants were grown in a hydroponics setup for 19 days under S deprivation against full nutrition. At day 17 and 26 from sowing (d...

The role of intergenerational altruism in explaining disparities between predicted and actual patterns of wealth accumulation is still unclear. Recent works suggests traditional testing methods may fail because altruism is in fact heterogeneous across the population. This paper uses a heretofore unexamined data set to attempt to identify demographic characteristics that may be correlated with i...

Modelling Charitable Donations to an Unexpected Natural Disaster: Evidence from the U.S. Panel Study of Income Dynamics Using household-level data, we explore the relationship between donations to the victims of the 2004 Indian Ocean tsunami disaster and other charitable donations. The empirical evidence suggests that donations specifically for the victims of the tsunami are positively associat...

After analyzing retail investors’ stock trades for potential learning behavior, we present evidence that individual investors learn from their trading experience. Initially, we question whether investors’ previous forecasting ability (inferred from prior purchases’ subsequent risk-adjusted performance) affects their future trade profitability and activity. Indeed, as an investor’s inferred abil...

Unemployment and Domestic Violence: Theory and Evidence Is unemployment the overwhelming determinant of domestic violence that many commentators expect it to be? The contribution of this paper is to examine, theoretically and empirically, how changes in unemployment affect the incidence of domestic abuse. The key theoretical prediction is that male and female unemployment have opposite-signed e...

There is substantial interest in development policies related to international migration from developing countries. In the last decade, there has been a wave of rigorous empirical studies (many of which are randomized controlled trials) quantifying the impacts of such policies. This article examines evidence on the impacts of policies in five areas: 1) migration facilitation, 2) migrant educati...

Family Location and Caregiving Patterns from an International Perspective This paper conducts a cross-national econometric analysis of intra-family location and caregiving patterns. First, we assess, from an international perspective, the relationship between family structure and the geographic proximity between adult children and their parents. We then examine whether differences in family str...