Look Who's Talking: The Impacts of the Intrahousehold Allocation of Mobile Phones on Agricultural Prices

Using data from the Philippines, we study the impact of mobile phones on the prices agricultural producers receive for their cash crop. We first look at the impact on price of mobile phone ownership at the household level. Because this masks a considerable amount of heterogeneity, we then look at the impact on price of the intrahousehold allocation of mobile phones. We find that whether the household owns a mobile phone has no impact on price, but whether a farmer or spouse owns a mobile phone is associated with a 5- to 8-per cent increase in price.     

Gender and Modern Supply Chains in Developing Countries

The rapid spread of modern supply chains in developing countries is profoundly changing the way food is produced and traded. In this article we examine gender issues related to this change. We conceptualise various mechanisms through which women are directly affected, we review existing empirical evidence and add new survey-based evidence. Our results suggest that, although modern supply chains are gendered, their growth is associated with reduced gender inequalities in rural areas. We find that women benefit more and more directly from large-scale estate production and agro-industrial processing, and the creation of employment in these modern agro-industries than from smallholder contract-farming.     

An interpretation of argentine economic growth since 1930∗Part I

This study uses pairing of Mexican‐owned manufacturing firms and firms with direct United States investment, to examine the effects of ownership structure on firms’ performance and sources of technology. Results suggest that in terms of profitability, growth and export performance the Mexican firms were competing successfully during the period 1966–73. Furthermore, the basis for this strong posture by the Mexican manufacturers was not due to a heavy reliance on foreign technology imported through formal channels, but rather is linked with internal innovative activity and the use of domestic consultants.     

An interpretation of Argentine economic growth since 1930. Part II∗

This article focuses on the measurement of embodied technological change. It develops the core-machinery approach to capital measurement, which is based on an engineering perspective on technological change. Using technical characteristics of different types of machinery, technical progress in the capital stock can be decomposed into incremental innovation in existing machinery and radical shifts to new technologies. The usefulness of this approach is illustrated by an analysis of embodied technological change in the Indonesian spinning and weaving industries. The core-machinery measure is compared with more traditional measures of the capital stock which are based on price information. Strengths, weaknesses and relevance of the new measure are discussed.     

Conditions of non‐development: The case of Lesotho

A peculiar combination of social and economic factors entailed by the proximity of South Africa creates, for Lesotho, a syndrome of non‐development that may usefully be visualised as a vicious circle in three parts—Poverty, Migration, Ideology—and is so described here. It is the purpose of this paper to demonstrate that the economic facts of village life in Lesotho (and in countries with certain characteristics in common with Lesotho) are perpetuated by their effect on the individual villager. The analysis enters a caveat to the theory of ‘aspiration effect’ [Firth and Yamey, 1963], extends the concept of frustration gap’ [McLoughlin, 1970] and adds a dimension to the cognitive map of migrant ideology [Philpott 1968].     

Second‐hand machinery in development,or how to recognize a bargain

In the literature on economic development and planning, much is made of the problem of ‘choice of technique'—choosing either capital or labour intensive techniques. In this paper the focus is on another aspect of this problem—the choice among capital inputs, the selection of new or second‐hand equipment. As much of the investment in the less developed countries depends on imported machinery, the problem becomes that of making the most efficient use of foreign exchange. The question is relevant as a number of developing countries have imposed prohibitions on the importation of used machinery.

First we examine the theoretical implications of the availability of both new and used machines for the production possibilities and the effects of various trade policies on the selection of production technique. Integrating this question of new versus used machines with investment criteria, we then examine situations in which used machinery might be preferable to new.     

Nepali fuelwood production and consumption: Regional and household distinctions,substitution and successful intervention

This article uses household data from Nepal's two major populated regions (and 27 of 59 districts within those regions) to examine fuelwood consumption and production. In contrast with a purely market assessment, household analysis includes production which is consumed in the producing household. The household regressions yield coefficients and elasticities that are very different from and more reliable than a comparable assessment of market demand and supply. Household results generally support the hypotheses that expenditures on fuelwood are a small share of total household activity and that fuelwood is not sufficiently scarce to alter household behaviour. Fuelwood is sufficiently scarce, however, to alter behaviour for those households in the hill region that do not participate in market exchange. These households may be the best targets for public market interventions designed to alter fuelwood supply and deforestation.     

A New Method for the Removal and Analysis of Small Particles Adhering to Carpet Fiber Surfaces,,

Fibers are a commonly encountered evidence type and fiber comparisons are routinely conducted. When the characteristics of questioned and known fibers correspond, the probative value is limited because the characteristics compared are determined by their manufacture. It would be valuable to test the hypothesis that questioned fibers originated from a specific carpet. One means of testing this is to analyze fine particles on the fibers. A procedure was developed for removing adhering particles from fibers and preparing them for scanning electron microscopy/ energy dispersive X‐ray spectrometry (SEM/EDS) analysis. The efficacy of several fluids (acetone, ethanol, hexanes, aqueous ethanol, aqueous sodium hexametaphosphate) and agitation methods (sonication and vortexing) for removing particles from fibers was evaluated. The most effective method evaluated was sonication in ethanol for 10 min. The recovered particles were filtered onto a polycarbonate filter and analyzed by automated SEM/EDS analysis to generate data on the particle assemblage. This method makes possible future research to test the within‐item and between‐item variability of particle assemblages on fibers.     

Raman Spectroscopy as a Simple,Rapid, Nondestructive Screening Test for Methamphetamine in Clandestine Laboratory Liquids

Raman spectroscopy has found increased use in the forensic controlled substances laboratory in recent years due to its rapid and nondestructive analysis capabilities. Here, Raman spectroscopy as a screening test for methamphetamine in clandestine laboratory liquid samples is discussed as a way to improve the efficiency of a laboratory by identifying the most probative samples for further workup among multiple samples submitted for analysis. Solutions of methamphetamine in ethanol, diethyl ether, and Coleman fuel were prepared in concentrations ranging from 0.5% to 10% w/v, and Raman spectra of each were collected. A concentration‐dependant Raman peak was observed at 1003 per cm in each solution in 4% w/v and greater solutions. Case samples were analyzed and also found to reliably contain this diagnostic peak when methamphetamine was present. The use of this diagnostic indicator can save the forensic controlled substances laboratory time and materials when analyzing clandestine laboratory liquid submissions.     

Ultrafast Amplification of DNA on Plastic Microdevices for Forensic Short Tandem Repeat Analysis

The majority of microfluidic devices used as a platform for low‐cost, rapid DNA analysis are glass devices; however, microchip fabrication in glass is costly and laborious, enhancing the interest in polymeric substrates, such as poly (methyl methacrylate) (PMMA), as an inexpensive alternative. Here, we report amplification in PMMA polymerase chain reaction (PCR) microchips providing full short tandem repeat profiles (16 of 16 loci) in 30–40 min, with peak height ratios and stutter percentages that meet literature threshold requirements. In addition, partial profiles (15 of 16 loci) were generated using an ultrafast PCR method in 17.1 min, representing a ~10‐fold reduction in reaction time as compared to current amplification methods. Finally, a multichamber device was demonstrated to simultaneously amplify one positive, one negative, and five individual samples in 39 min. Although there were instances of loci dropout, this device represents a first step toward a microfluidic system capable of amplifying more than one sample simultaneously.