The Effects of Improved Roads on Wages and Employment: Evidence from Rural Labour Markets in Indonesia

This paper examines the impact of road quality on labour supply and wages using household panel data from rural Indonesia. The analysis uses fixed-effect instrumental variable estimation by first differencing two-round panel data. First, road projects are found to increase the transportation speed. Second, the empirical results from intra-village variations of household endowments and labour-market behaviour show that an increase in transportation speed raised wages in both non-agricultural and agricultural employment, and was associated with a decline in working time in agricultural employment, for the households whose members are relatively educated. The findings support potential complementarity between road quality and education, implying that the government’s public investments in roads and education should be coordinated to capture cross-augmenting positive impacts in the long run.     

Long-term Impacts of Global Food Crisis on Production Decisions: Evidence from Farm Investments in Indonesia

This paper estimates farmers’ investment response to food price spikes using household panel data collected before and after the 2007/08 food price crisis in Indonesia. We found that an increase in farmers’ terms-of-trade allowed relatively large crop-producing farmers to increase their investments at both extensive and intensive margins. Food price spikes had a significant income effect among farmers whose production surplus is large for market sales. During the food price crisis, large farmers particularly increased machine investments, which saved some labour inputs, pointing to the importance of complementarities between land and machine investments.     

Simultaneous identification/determination system for phentolamine and sildenafil as adulterants in soft drinks advertising roborant nutrition

An easily available, simultaneous identification/determination procedure for phentolamine (PHE) and sildenafil (SIL) in adulterated dietary supplements was established by using a combination of three different analytical methods; thin-layer chromatography (TLC), liquid chromatography–mass spectrometry (LC/MS) and a high-performance liquid chromatography (HPLC)/photo-diode-array. The sample solution for TLC was applied to silica gel 60 F₂₅₄ plates with chloroform/ammonia solution (28)/methanol (70:5:3, lower layer) and chloroform/diethylamine/methanol (15:3:2) as the developing solvent. Spots were located under UV radiation at 254 nm. Mass spectra of PHE and SIL by LC/MS were investigated with electrospray ionization (ESI) interface, under both positive and negative ion mode. The HPLC analysis was performed on a column of Wakosil 5C18 (4.6 mm×150 mm, 5 μm) with water/methanol/acetonitrile/triethylamine (580:250:170:1) adjusted with phosphoric acid to pH 3.0 as the mobile phase, and the effluent was monitored with a photo-diode-array detector. Quantitative HPLC analysis of PHE and SIL were detected at 280 nm. When this procedure was applied to commercial soft drinks, PHE and SIL were identified and determined at a concentration of 17 mg PHE and 44 mg SIL per bottle, respectively. The procedure described here is available for the screening of PHE and SIL in adulterated supplements.     

Frequency and Clinical Features of Patients who Attempted Suicide by Hara‐Kiri in Japan

Hara‐kiri is a unique Japanese custom, primarily stemming from the manners and customs that a samurai held. The aim of the present study was to investigate the clinical features of individuals who attempted suicide by hara‐kiri. We enrolled 647 patients who had attempted suicide. Clinical features were compared between those who had employed hara‐kiri and those who had used other methods. 25 of the 647 subjects had attempted suicide by hara‐kiri. The ratio of men to women and the proportion of patients with mood disorders were significantly higher in the hara‐kiri group than in the other methods group. The average length of stay in either the hospital or in the intensive care unit was also longer in the hara‐kiri group than in the other methods group. Hara‐kiri is an original Japanese method of attempting suicide, and suicide attempts by hara‐kiri may be aimed at maintaining a reputation or taking responsibility.     

Positive Effects in Detecting Lies from Training to Recognize Behavioral Anomalies

We examined whether training in both the verbal and nonverbal indicators of truth telling and lying would have positive effects on Law Enforcement Officers’ (LEOs) ability to evaluate truths from lies. College course-level training on empirically validated verbal and nonverbal indicators of truth telling and lying was provided to mid- to advanced-career level LEOs, whose accuracy in detecting lies from truths was assessed pre- and post-training using truthful and deceptive videos of mock crimes and opinions. A marginally significant truth bias existed at pre-test; training, however, resulted in a significant improvement in accuracy rates for both truth and lie videos, and the truth bias that existed at pre-test was eliminated. Additional analyses indicated that accuracy rates improved for videos of mock crimes but not for opinions. These findings add to a small but growing literature that indicates that training on validated verbal and nonverbal indicators of truth telling and lying has positive benefits.     

Young Afghans in ‘transition’: towards Afghanisation,exit or violence?

This article (re)examines Afghan youth within the post-Taliban nation-building process through a close review of the growing academic literature on the nexus of development and conflict, as well as the author's personal, in-country interactions with Afghans over the past decade. It argues that when people believe in development, they view inequalities as a particular stage that they must pass through to emerge on the other side. Yet, when a country's people lose faith in the promise of development, they begin to view inequalities without the hope that reaching the other side is simply a matter of time and patience. When this ‘loss of faith’ occurs one option is to try to exit to a better place. The second option is violence—to break through to the ‘other side’ through force. This article argues that with the decade long failure of development in Afghanistan such trends are increasingly visible among Afghan youth, and suggests the need for a critical paradigm shift in the way that we view the country and the context of development there.     

An Inquiry into the Heterogeneous Outcomes of International Migration: Evidence from Rural Households in Bangladesh

There are considerable differences in the duration, intensity, and history of migration experiences among migrant households. The variation can have a significant effect on their investment behaviour. We classify our sample households in Bangladesh into four groups depending on the history and stage of migration and estimate its differential effect on physical and human capital investment. The results show that the patterns of investment are distinct between the groups and even of opposite directions in some cases. These heterogeneous effects often cancel each other out, leading to insignificant effects of migration when the average effect on all migrant households is estimated.     

Y-chromosomal STR haplotype in the Japanese population.

Allele and haplotype frequencies of seven Y-chromosome STR loci from samples of 108 unrelated Japanese males living in Aichi Prefecture.