The current challenge for world agriculture is to provide food for a growing population, within a context of environmental degradation and economic inequality. The challenge is how to produce accessible, healthy, diverse, nutritious, safe and abundant food in a way that is sustainable, allowing farmers to exert food sovereignty while at the same time addressing ecosystem conservation. The aim of this study is to explore the potential contribution of traditional agriculture to food sovereignty and also to understand the challenges that indigenous communities are facing today. Our case studies are from six Latin-American countries: Chile, Peru, Ecuador, Colombia, Guatemala and Mexico, where we carried out semi-structured, guided visits and field observations. Our results shed light on how traditional agricultural knowledge, techniques and practices can contribute to these issues, but also to the need of protecting and recovering the cultural and ecological heritage. There is a need to resolve public management issues, related to development investment, technological packages, cultural loss and gender. If these are not addressed, the potential contribution of ancient agricultural knowledge will fail to contribute to strengthen food sovereignty and maintain the local markets, which are also places for seed exchange, knowledge sharing and social networking. 相似文献
This paper attempts to disentangle the intricate relation linking the world interest rate, country spreads, and emerging-market fundamentals. It does so by using a methodology that combines empirical and theoretical elements. The main findings are: (1) US interest rate shocks explain about 20% of movements in aggregate activity in emerging economies. (2) Country spread shocks explain about 12% of business cycles in emerging economies. (3) In response to an increase in US interest rates, country spreads first fall and then display a large, delayed overshooting; (4) US-interest-rate shocks affect domestic variables mostly through their effects on country spreads; (5) The feedback from emerging-market fundamentals to country spreads significantly exacerbates business-cycle fluctuations. 相似文献
Ukraine’s recent elections revealed deep divisions between eastern regions, which favored central economic planning, and western
regions, which preferred more free market reforms. This study compares polyclinics in Ukraine to see if the inflexibility
of Soviet-style planned economies results in lower economic efficiency in eastern regions. Using data from two geopolitical
regions, Data Envelopment Analysis (DEA) scores for polyclinic efficiencies are modeled as a function of demographic and economic
determinants. Surprisingly, results indicate that polyclinics in western Ukraine are less efficient. Possible explanations,
including case mix intensity, responsiveness to local preferences, physician entrepreneurial behavior and a legacy of inequitable
funding, are discussed.
Economists and business managers have long been interested in the impact of research and development (R&D) cooperation with scientific institutions on the innovation performance of firms. Recent research identifies a positive correlation between these two variables. This paper aims to contribute to the identification of the relationship between R&D cooperation with scientific institutions and the product and process innovation performance of firms by using a difference-in-difference approach. In doing so, we distinguish between two different types of scientific institutions: universities and governmental research institutes. For the econometric analyses, we use data from the German Community Innovation Survey. In total, data from up to 560 German service and manufacturing firms are available for the difference-in-difference analyses. The results suggest that R&D cooperation with universities and governmental research institutes has a positive effect on both product innovation and process innovation performance of firms. 相似文献
Objective: To estimate the economic burden of hypoglycemia on the healthcare system at the national level in the US between the years of 2005–2009.
Methods: This study analyzed the National Hospital Ambulatory Medical Care Survey (NHAMCS), including emergency department (ED) and outpatient department (OPD) components, and the National Ambulatory Medical Care Survey (NAMCS). The annual rates of ED and OPD visits associated with hypoglycemia were reported. Subsequent medical services after disposition were studied. The unit cost of specific medical service was estimated from the Medical Expenditure Panel Survey (MEPS). All annualized costs were adjusted to US 2009 dollars. We also estimated the rates of injury and ambulance use incurring within a visit for hypoglycemia.
Results: The total direct medical cost of hypoglycemia was estimated as $3.49 billion in 2005 and decreased gradually to $1.84 billion in 2009. The declining trend was correlated with hospital admissions from ED, which decreased from 170 665 in 2005 to 71,751 in 2009. Consequently, the estimated annual expenditure of hospitalization for hypoglycemia from ED declined over time by more than half ($2.90 billion in 2005, $1.25 billion in 2009). Injury was reported among 9.5% of the ED visits for hypoglycemia. Ambulances were used among 58% of the ED visits for hypoglycemia.
Conclusion: Hypoglycemia poses a significant burden on the healthcare system; however, annual direct medical cost of severe hypoglycemia in the US decreased over the 5 years studied, which is attributable to tremendous decrease in need of hospitalization following an ED visit. 相似文献
The purpose of the study was to examine the relationship between brand attachment and emotional well-being of consumers based on the need for personal image management and feelings of arrogant pride. A study of 107 consumers of the Calvin Klein brand was performed. Data were analyzed using the structural equations modeling technique. The results indicated a positive relationship between brand attachment and emotional well-being of consumers. A relationship was also identified between brand attachment, image management, and emotional well-being, and brand attachment and arrogant pride. No relationship was identified between arrogant pride and emotional well-being. 相似文献
Abstract. We report the results of an experiment that demonstrates that market experience is not necessary to eliminate bubbles in the type of asset markets studied in Smith et al . (1988) . We introduce a pre-market phase in which subjects experience a dividend flow themselves by literally observing and receiving dividends for 12 periods. The robust bubble–crash phenomenon never occurs in our experiment. Our results provide strong evidence that so long as a majority of the subjects have full understanding of the structure of the dividend, market efficiency can be ensured. 相似文献