134 research outputs found
The environmental, social, governance, and financial performance effects on companies that adopt the United Nations Global Compact
This paper aims to investigate companiesâ environmental, social, governance (ESG), and financial implications of their commitment to the United Nations Global Compact (UNGC). The focus is placed on companies operating in the three countries with the highest number of UNGC participants: Spain, France, and Japan. The results clearly reveal that adoption of the UNGC often requires an organizational change that fosters stakeholder engagement, ultimately resulting in improvements in companiesâ ESG performance. Additionally, the results reveal that ESG performance has a significant impact on financial performance for companies that adopted the principles of the UNGC. These findings provide both non-financial and financial incentives to companies to commit to this voluntary corporate social responsibility (CSR) initiative, which will have important implications on companiesâ strategic management policies that aim to foster sustainable businesses and community development. Finally, the linkages between the UNGC-committed companiesâ ESG and financial performance may be influenced by geographical spread, mainly due to the appearance of differences in the institutional, societal, and cultural settings
National institutions, stakeholder engagement, and firms' environmental, social, and governance performance
This paper studies the influence of different national institutions on corporate environmental, social, and governance (ESG) performance through the varieties of institutional systems approach. This research complements previous research that used traditional approaches such as the national business systems and the varieties of capitalism, because it considers companies in understudied economies in Asia, Africa, Eastern Europe, the Middle East, and Latin America. To that aim, a dataset of 4, 751 firms within 52 countries is examined through a multilevel model, which allows establishing three levels of analysis: (a) yearly observations of a firm ESG performance, (b) the companies, and (c) the countries. This technique is useful to address the nested nature of firms' ESG performance within higher level institutional contexts. The results identify which specific national institutions enhance/restrict companies' ESG performance. This provides interesting implications because firms' ESG represent most of the companies' contributions to environmental preservation, social well-being, and community development
Exploring the quality of social information disclosed in non-financial reports of Croatian companies
By enacting the provisions of Directive 2014/95/EU and the
Croatian Accounting Act on disclosing non-financial and diversity
information, companies of public interest registering 500 and
more employees are required to disclose non-financial information.
The purpose of this research is to assess the quality of disclosed
social information in non- financial/sustainability reports of
Croatian companies. The assessment of the social information was
grounded on the framework defined by globally accepted sustainability
reporting standards by assessing the quality of social subcategories
of human rights, labour practice, community/society
and product, measured by attributes of relevance, clarity, verifiability,
comparability and clarity. With the overall quality score of
13.16 (out of possible 36), the results prove that Croatian companies
do disclose certain social information, but the reliability of
this information for benchmarking and competitiveness assessment
is questionable, as a consensus on the minimum of information
to be disclosed as a fundamental requirement for
benchmarking has not yet been reached
Agronomic Management of Indigenous Mycorrhizas
Many of the advantages conferred to plants by arbuscular mycorrhiza (AM) are associated to the ability of AM plants to explore a greater volume of soil through the extraradical mycelium. Sieverding (1991) estimates that for each centimetre of colonized root there is an increase of 15 cm3 on the volume of soil explored, this value can increase to 200 cm3 depending on the circumstances. Due to the enhancement of the volume of soil explored and the ability of the extraradical mycelium to absorb and translocate nutrients to the plant, one of the most obvious and important advantages resulting from mycorrhization is the uptake of nutrients. Among of which the ones that have immobilized forms in soil, such as P, assume particular significance. Besides this, many other benefits are recognized for AM plants (Gupta et al, 2000): water stress alleviation (Augé, 2004; Cho et al, 2006), protection from root pathogens (Graham, 2001), tolerance to toxic heavy metals and phytoremediation (Audet and Charest, 2006; Göhre and Paszkowski, 2006), tolerance to adverse conditions such as very high or low temperature, high salinity (Sannazzaro et al, 2006), high or low pH (Yano and Takaki, 2005) or better performance during transplantation shock (Subhan et al, 1998). The extraradical hyphae also stabilize soil aggregates by both enmeshing soil particles (Miller e Jastrow, 1992) and producing a glycoprotein, golmalin, which may act as a glue-like substance to adhere soil particles together (Wright and Upadhyaya, 1998).
Despite the ubiquous distribution of mycorrhizal fungi (Smith and Read, 2000) and only a relative specificity between host plants and fungal isolates (McGonigle and Fitter, 1990), the obligate nature of the symbiosis implies the establishment of a plant propagation system, either under greenhouse conditions or in vitro laboratory propagation. These techniques result in high inoculum production costs, which still remains a serious problem since they are not competitive with production costs of phosphorus fertilizer. Even if farmers understand the significance of sustainable agricultural systems, the reduction of phosphorus inputs by using AM fungal inocula alone cannot be justified except, perhaps, in the case of high value crops (Saioto and Marumoto, 2002). Nurseries, high income horticulture farmers and no-agricultural application such as rehabilitation of degraded or devegetated landscapes are examples of areas where the use of commercial inoculum is current. Another serious problem is quality of commercial available products concerning guarantee of phatogene free content, storage conditions, most effective application methods and what types to use. Besides the information provided by suppliers about its inoculum can be deceiving, as from the usually referred total counts, only a fraction may be effective for a particular plant or in specific soil conditions. Gianinazzi and VosĂĄtka (2004) assume that progress should be made towards registration procedures that stimulate the development of the mycorrhizal industry.
Some on-farm inoculum production and application methods have been studied, allowing farmers to produce locally adapted isolates and generate a taxonomically diverse inoculum (Mohandas et al, 2004; Douds et al, 2005). However the inocula produced this way are not readily processed for mechanical application to the fields, being an obstacle to the utilization in large scale agriculture, especially row crops, moreover it would represent an additional mechanical operation with the corresponding economic and soil compaction costs.
It is well recognized that inoculation of AM fungi has a potential significance in not only sustainable crop production, but also environmental conservation. However, the status quo of inoculation is far from practical technology that can be widely used in the field. Together a further basic understanding of the biology and diversity of AM fungi is needed (Abbott at al, 1995; Saito and Marumoto, 2002).
Advances in ecology during the past decade have led to a much more detailed understanding of the potential negative consequences of species introductions and the potential for negative ecological consequences of invasions by mycorrhizal fungi is poorly understood. Schwartz et al, (2006) recommend that a careful assessment documenting the need for inoculation, and the likelihood of success, should be conducted prior to inoculation because inoculations are not universally beneficial.
Agricultural practices such as crop rotation, tillage, weed control and fertilizer apllication all produce changes in the chemical, physical and biological soil variables and affect the ecological niches available for occupancy by the soil biota, influencing in different ways the symbiosis performance and consequently the inoculum development, shaping changes and upset balance of native populations. The molecular biology tools developed in the latest years have been very important for our perception of these changes, ensuing awareness of management choice implications in AM development.
In this context, for extensive farming systems and regarding environmental and economic costs, the identification of agronomic management practices that allow controlled manipulation of the fungal community and capitalization of AM mutualistic effect making use of local inoculum, seem to be a wise option for mycorrhiza promotion and development of sustainable crop production
The Role of Individual Variables, Organizational Variables and Moral Intensity Dimensions in Libyan Management Accountantsâ Ethical Decision Making
This study investigates the association of a broad set of variables with the ethical decision making of management accountants in Libya. Adopting a cross-sectional methodology, a questionnaire including four different ethical scenarios was used to gather data from 229 participants. For each scenario, ethical decision making was examined in terms of the recognition, judgment and intention stages of Restâs model. A significant relationship was found between ethical recognition and ethical judgment and also between ethical judgment and ethical intention, but ethical recognition did not significantly predict ethical intentionâthus providing support for Restâs model. Organizational variables, age and educational level yielded few significant results. The lack of significance for codes of ethics might reflect their relative lack of development in Libya, in which case Libyan companies should pay attention to their content and how they are supported, especially in the light of the under-development of the accounting profession in Libya. Few significant results were also found for gender, but where they were found, males showed more ethical characteristics than females. This unusual result reinforces the dangers of gender stereotyping in business. Personal moral philosophy and moral intensity dimensions were generally found to be significant predictors of the three stages of ethical decision making studied. One implication of this is to give more attention to ethics in accounting education, making the connections between accounting practice and (in Libya) Islam. Overall, this study not only adds to the available empirical evidence on factors affecting ethical decision making, notably examining three stages of Restâs model, but also offers rare insights into the ethical views of practising management accountants and provides a benchmark for future studies of ethical decision making in Muslim majority countries and other parts of the developing world
Updated Iberian archeomagnetic catalogue: new full vector paleosecular variation curve for the last three millennia
In this work, we present 16 directional and 27 intensity highâquality values from Iberia. Moreover, we have updated the Iberian archeomagnetic catalogue published more than 10 years ago with a considerable increase in the database. This has led to a notable improvement of both temporal and spatial data distribution. A full vector paleosecular variation curve from 1000 BC to 1900 AD has been developed using highâquality data within a radius of 900 km from Madrid. A hierarchical bootstrap method has been followed for the computation of the curves. The most remarkable feature of the new curves is a notable intensity maximum of about 80 ÎŒT around 600 BC, which has not been previously reported for the Iberian Peninsula. We have also analyzed the evolution of the paleofield in Europe for the last three thousand years and conclude that the high maximum intensity values observed around 600 BC in the Iberian Peninsula could respond to the same feature as the Levantine Iron Age Anomaly, after travelling westward through Europe
Stressed out symbiotes:hypotheses for the influence of abiotic stress on arbuscular mycorrhizal fungi
Abiotic stress is a widespread threat to both plant and soil communities. Arbuscular mycorrhizal (AM) fungi can alleviate effects of abiotic stress by improving host plant stress tolerance, but the direct effects of abiotic stress on AM fungi are less well understood. We propose two hypotheses predicting how AM fungi will respond to abiotic stress. The stress exclusion hypothesis predicts that AM fungal abundance and diversity will decrease with persistent abiotic stress. The mycorrhizal stress adaptation hypothesis predicts that AM fungi will evolve in response to abiotic stress to maintain their fitness. We conclude that abiotic stress can have effects on AM fungi independent of the effects on the host plant. AM fungal communities will change in composition in response to abiotic stress, which may mean the loss of important individual species. This could alter feedbacks to the plant community and beyond. AM fungi will adapt to abiotic stress independent of their host plant. The adaptation of AM fungi to abiotic stress should allow the maintenance of the plant-AM fungal mutualism in the face of changing climates. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00442-016-3673-7) contains supplementary material, which is available to authorized users
Magnesium mobility in soils as a challenge for soil and plant analysis, magnesium fertilization and root uptake under adverse growth conditions
Efecto de la aplicaciĂłn de micorrizas sobre el crecimiento vegetal y la absorciĂłn de nutrientes en la producciĂłn de pepino bajo condiciones de campo
Mycorrhiza application in horticultural production in the Eastern Mediterranean region of Turkey has been studied under field conditions for several years. The effects of different arbuscular mycorrhizal fungi (AMF) have been evaluated under field conditions for cucumber production. The parameters measured were seedling survival, plant growth and yield, and root colonization. In 1998 and 1999, Glomus mosseae and Glomus etunicatum inoculated cucumber seedlings were treated with and without P (100 kg P2O5 ha-1) application. A second experiment was set up to evaluate the response of cucumber to the inoculation with a consortia of indigenous mycorrhizae, G. mosseae, G. etunicatum, Glomus clarum, Glomus caledonium and a mixture of these four species. Inoculated and control non inoculated cucumber seedlings were established under field conditions in 1998, 2001, 2002 and 2004. Seedling quality, seedling survival under field conditions and yield response to mycorrhiza were tested. Fruits were harvested periodically; at blossom, plant leaves and root samples were taken for nutrient content and mycorrhizal colonization analysis respectively. The field experiment results showed that mycorrhiza inoculation significantly increased cucumber seedling survival, fruit yield, P and Zn shoot concentrations. Indigenous mycorrhiza inoculum was successful in colonizing plant roots and resulted in better plant growth and yield. The relative effectiveness of each of the inocula tested was not consistent in the different experiments, although inoculated plants always grew better than control no inoculated. The most relevant result for growers was the increased survival of seedlings.Se han evaluado los efectos de diferentes hongos formadores de micorrizas arbusculares (HMA) en la producción de pepino en la zona del Mediterráneo Oriental de Turquía. Los parámetros medidos fueron supervivencia de plántulas, crecimiento de la planta, su rendimiento en frutos y la colonización micorrícica de la raíz. En 1998 y 1999 se inocularon plántulas de pepino con Glomus mosseae y Glomus etunicatum y se realizó un tratamiento control y un tratamiento fertilizado con P (100 kg P2O5 ha-1). En un segundo experimento en campo se evaluó la respuesta del pepino a la inoculación con distintos HMA nativos (G. mosseae, G. etunicatum, Glomus clarum, Glomus caledonium y una mezcla de estas cuatro especies). En 1998, 2001, 2002 y 2004 se plantaron en campo plántulas de pepino, control (no inoculadas) e inoculadas. Se evaluó la calidad de las plántulas, su supervivencia y su rendimiento en frutos. Se cosecharon los frutos periódicamente y, en el momento de la floración, se tomaron muestras de hojas y raíz para determinar el contenido de nutrientes y la micorrización, respectivamente. La inoculación de HMA aumentó significativamente la supervivencia de plántulas de pepino, la producción de frutos, y las concentraciones foliares de P y Zn; también fue efectivo en el establecimiento de la simbiosis en raíz y dio como resultado un mayor crecimiento de las plantas y un aumento de la cosecha. La eficacia relativa de cada uno de los inóculos probados no fue consistente, ya que varió según el año del ensayo, aunque las plantas micorrizadas siempre crecieron mejor que las plantas no inoculadas. El resultado más relevante para los productores fue el aumento de la supervivencia de las plántulas
- âŠ