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81.
While pesticides–such as insecticides, fungicides, and herbicides–are often promoted as inputs that increase agricultural productivity by limiting a range of pre‐harvest losses, their use may have negative human health and labor productivity implications. We explore the relationship between pesticide use and the value of crop output at the plot level and a range of human health outcomes at the household level using large‐scale, nationally representative panel survey data from four Sub‐Saharan African countries where more than 10% of main season cultivators use pesticides. We find that pesticide use is strongly correlated with increased value of harvest, but is also correlated with higher costs associated with human illness, including increased health expenditures and time lost from work due to sickness in the recent past. We take these results as suggestive that the findings of more targeted studies are indeed generalizable beyond their original, purposively chosen samples. 相似文献
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This study takes a fresh look at the nature of financial and real business cycles in OECD countries using annual data series and shorter quarterly economic indicators. It first analyses whether the last cycle has been different compared to previous cycles in terms of length, amplitude, asymmetry and changes of these parameters during expansions and contractions. We also study the degree of economic and financial cycle synchronization between OECD countries but also of economic and financial variables within a given country and gauge the extent to which cycle synchronization changed over time. We next describe the connection between the great moderation and the last cycle. Finally, the study discusses the synchronization between the real economy and the financial sector and provides some new evidence on the banking sector's pro‐cyclicality by using aggregate and bank level. The main findings show that the amplitude of the real business cycle was becoming smaller during the great moderation, but asset price cycles were becoming more volatile. In part, this was linked to developments in the banking sector which tended to accentuate pro‐cyclical behaviour. Greater synchronization of cycles may help explain the severity of the crisis. 相似文献
88.
Jian Li Dylan Sutherland Lutao Ning Yuandi Wang 《Technology Analysis & Strategic Management》2014,26(9):1001-1022
This paper uses panel data between 2000 and 2010 to explore how firm ownership and regional industrial structures contribute to regional innovation performance in Chinese provinces. Specifically, we explore how the extent of specialisation and diversification in regional industrial structures at the province level fosters both Marshall–Arrow–Romer and Jacobs spillovers, as well as how foreign and state ownership influence regional innovation. We find: (i) China's regional innovation systems benefit from Jacobs but not MAR externalities, with the former spurring higher quality innovation in the form of increased invention patenting; (ii) state-owned enterprises and foreign-invested enterprises advance local innovation, with the latter again fostering higher quality innovation; and (iii) a convergence towards a combination of low specialisation and high diversity in provincial industrial structure is taking place between China's more developed inland coastal provinces and less developed inland provinces. Implications and suggestions for policy-making and future research are discussed. 相似文献
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The employment effect from raising the minimum wage has long been studied but remains in dispute. Our meta‐analysis of 236 estimated minimum wage elasticities and 710 partial correlation coefficients from 16 UK studies finds no overall practically significant adverse employment effect. Unlike US studies, there seems to be little, if any, overall reporting bias. Multivariate meta‐regression analysis identifies several research dimensions that are associated with differential employment effects. In particular, the residential home care industry may exhibit a genuinely adverse employment effect. 相似文献
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Qualitative field research in England identified a cohort of farmers practicing what they self-defined as ‘effectively organic’ or ‘semi-organic’ farming. Utilising Ajzen's theory of planned behaviour as a framework for analysis, reducing inputs was found to be primarily a response to financial pressures, also reflected in changing substantive norms towards balancing risks and potential returns against investment, rather than optimising production. However, despite the apparent ease of converting to organic farming from low input practice, formal conversion to organic farming was not found to be the automatic outcome of this trajectory: instead, organic farming was identified as only one of a number of options for increasing the financial viability of the farming operation, which included other niche markets, pluriactivity and contracting land to and from other farmers. The affiliation of low input farmers with organic production denotes positive attitudes towards both organic farming and environmental practices, but a lack of understanding about organic farming techniques. The author argues that due to declining returns/input ratios, future conversion to organic farming may reflect the value placed on other aspects of organic production, such as increased labour, risk reduction and environmental ideals, and highlights the environmental implications of the ongoing ‘cost price squeeze’ on farming households. 相似文献