PROXYING FOR UNOBSERVABLE VARIABLES WITH INTERNET DOCUMENT‐FREQUENCY

The internet contains billions of documents. We show that document frequencies in large decentralized textual databases can capture the cross‐sectional variation in the occurrence frequencies of social phenomena. We characterize the econometric conditions under which such proxying is likely. We also propose using recently‐introduced internet search volume indexes as proxies for fundamental locational traits, and discuss their advantages and limitations. We then successfully proxy for a number of economic and demographic variables in US cities and states. We further obtain document‐frequency measures of corruption by country and US state and replicate the econometric results of previous research studying its covariates. Finally, we provide the first measure of corruption in American cities. Poverty, population size, service‐sector orientation, and ethnic fragmentation are shown to predict higher levels of corruption in urban America.     

Free Viewing Gaze Behavior in Infants and Adults

The current study investigated age differences in free viewing gaze behavior. Adults and 6‐, 9‐, 12‐, and 24‐month‐old infants watched a 60‐sec Sesame Street video clip while their eye movements were recorded. Adults displayed high intersubject consistency in eye movements; they tended to fixate the same places at the same. Infants showed weaker consistency between observers and intersubject consistency increased with age. Across age groups, the influence of both bottom‐up features (fixating visually salient areas) and top‐down features (looking at faces) increased. Moreover, individual differences in fixating bottom‐up and top‐down features predicted whether infants’ eye movements were consistent with those of adults, even when controlling for age. However, this relation was moderated by the number of faces available in the scene, suggesting that the development of adult‐like viewing involves learning when to prioritize looking at bottom‐up and top‐down features.     

Two languages,one variable? Pharyngeal realizations among Arabic–Hebrew bilinguals

Linguistic features that index ethnic identities often originate in another language spoken by the same community, often involving the introduction of exogenous features absent from the mainstream variety. We examine the more unusual situation of Hebrew spoken by Arabic–Hebrew bilingual Palestinians, where the pharyngeal consonants, which occur in both Arabic and Hebrew monolingual varieties, serve as ethnically linked sociolinguistic variables. Drawing on sociolinguistic interviews with such bilinguals in Jaffa, we demonstrate that while Palestinians’ use of pharyngeals in Hebrew is commonly perceived as transfer from Arabic, their linguistic and social conditioning does not support a transfer account. Rather, for these speakers, pharyngeals are a socially meaningful resource simultaneously linked to Arab identity and to a rich indexical field in Hebrew. While the pharyngeals pattern linguistically as Hebrew features, our findings illustrate that, from a social meaning perspective, sociolinguistic features need not be unambiguously associated with a single language.     

On complexity and lotteries' evaluation – three experimental observations

We present experimental evidence suggesting that human subjects penalize lotteries for complexity. Our results contradict the assumption that human agents follow the discounted expected utility model in multi-period choice with uncertainty. In particular, we show that the buying price offered for an inferior, simple multi-period lottery may sometimes significantly exceed the buying price offered for a better, yet more complicated, alternative, when the lotteries are sold to a group of subjects in a first-price auction. We discuss the possibility to modify the existing models of choice to this “complexity effect”.     

Forecasting Mexico's oil potential

This paper is directed at estimating total producible oil in Mexico. Two specific models are suggested and estimated in a method consistent with the theoretical considerations. The results suggest that approximately 40 billion barrels are ultimately recoverable and producible of which 7.5 billion barrels have been produced through the end of 1980.     

Level of physical activity and anthropometric characteristics in old age—results from a national health survey

Advanced age is associated with degenerative changes in body composition. There is evidence suggesting that changes may vary upon differences in lifestyle, environment, or gender. Physical activity engagement is considered an important component of lifestyle definition. There are suggestions that engaging in physical activity might alleviate degenerative body compositional changes. The objective is to assess the relationship between adherence to recommended guidelines of physical activity and anthropometric parameters in Israeli older adults. Anthropometric measures, including height, weight, and waist circumference, were taken, and BMI was calculated, from a random sample of 1,663 elderly adults (799 men and 864 women), aged 74.31 (±6.05) years old. Participants reported their physical activity habits and, based on official guidelines recommendations, they were divided into sufficiently active, insufficiently active, and inactive groups. One-way ANOVA (level of physical activity) for both genders was conducted for each anthropometric variable. In both genders, an association between level of physical activity and weight, waist circumference, and BMI was found, with lower values among the sufficiently active. In addition, a relationship between level of physical activity and height was indicated among women, implying that the more active women were taller than the less active. In addition to the already known health benefits of physical activity in old age, it is possible that adherence to recommended guidelines of physical activity is associated with favorable anthropometric characteristics.     

Subjective time discount rates among teenagers and adults: Evidence from Israel

This study is an empirical examination of the personal discount rates used by teenagers and adults. The participants answered a time-preference questionnaire and were asked about the bank interest paid for deposits. The results demonstrate that teenagers have a very high personal discount rate in comparison to adults. In addition, we found that receiving a regular allowance increases the teenagers’ willingness to wait. Our results indicate that the influence of teenagers’ poor financial knowledge, which ought to increase the personal discount rate, is stronger than the effect of their safety net that should reduce the personal discount rate.     

State Versus Civil Society? A Non-Binary Model of Domination Through the Example of Israel

Through the Israeli case, the article questions the validity of the Western liberal model according to which (civil) "society" and "state" are two separate entities, the state ostensibly existing outside the society and imposing its will on it. Covering five distinct historical periods, from the beginning of the century until the present, and utilizing Antonio Gramsci's concept of hegemony, the article surveys one of Israel's core myths, if not the core itself, that of the pioneer ( halutz ). The result exposes an intriguing system of domination, which is based on intensive activity and responsiveness of the population, and on a blurred distinction between the rulers and the ruled, between objects and subjects, and between state and society. Because of the existence of this system of domination it is difficult to talk about Israel in terms of a despotic state; hence also the obstacle to the constitution of a civil society in Israel. For this is effectively a hegemonic system of domination, which repels all social change by its ability to absorb any innovation and shape its meaning.