83 research outputs found

    Do local financial and legal systems affect SMEs capital structure?

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    This note investigates the role of institutional differences at the local level as determinants of firms' capital structure. Specifically, its aim is to empirically assess whether and to what extent SMEs' financial decisions are affected by local financial development – evaluating this influence both ceteris paribus, and by allowing it to be conditional on different levels of legal enforcement inefficiency. Controlling for debt inertia, firms' heterogeneity and endogeneity problems, we find that local financial development may be an important determinant of SMEs' capital structure, and that firms appear to have better access to financial debt in areas characterized by a higher quality of the legal system. Thus, despite the international process of capital markets integration, local financial institutions do not seem to become irrelevant for SMEs, which are in need of well developed institutions at local level to gain easier access to external financial resources.firms' capital structure; bank debt; local financial development; local enforcement system, SMEs.

    From the Top Down: Does Corruption Affect Performance?

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    Corruption, fraud, and unethical activities have emerged as significant obstacles to global economic, political, and social progress. Although many empirical studies have focused on country-level corruption metrics, this study is the first to utilize a substantial international dataset to assess the effects of illicit and unethical managerial practices on firm performance. Employing cross-sectional data, this research examines the influence of corruption on corporate outcomes. Our definition of corruption evaluates the degree to which managers engage in mismanagement, misconduct, or corrupt activities. The repercussions for corporate governance, especially concerning the process of appointing managers, are both crucial and strategic.Comment: 7 Page

    Does Financial Institution Proximity Affect the Development of Entrepreneurship?

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    The present contribution joins the stream of research investigating the relationship between local financial development, economic growth, and entrepreneurship. Relevant contributions highlighted that the probability of an individual to start a new business is higher when he/she moves from the least financially developed region to the most financially developed one. Indeed, higher levels of local financial development allow for easier access to external funds, which are crucial for the growth of new businesses. In this entrepreneurial context, the need of financial resources is especially relevant for research spin-offs (ROSs), which require significant resources to transfer to the market their innovative technologies. This chapter deepens the role of local financial development on entrepreneurship and, in particular, on research spin-offs. Empirical evidence highlight that at the time of ROSs’ incubation, local financial development does not affect the performance of spin-offs, as they mainly rely on Universities and public contributions. Vice versa, when the RSOs enter the market, they are more in need of funds from the financial system, for which local financial development interestingly becomes strongly relevant to them, affecting corporate performance. Consequently, despite the internationalization of financial markets, policymakers should carefully encourage entrepreneurship through the development of local financial systems

    Human Wharton’s jelly-derived mesenchymal stem cells express several immunomodulatory molecules both in their naïve state and hepatocyte-like differentiated progeny: prospects for their use in liver diseases.

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    Wharton’s jelly (WJ), the main constituent of umbilical cord, is a reliable source of mesenchymal stem cells (MSC). WJ-MSC show unique ability in crossing lineage borders. As other extraembryonic mesenchymal populations (placenta and amnionderived cells), WJ-MSC express several immunomodulatory molecules, essential during the initial phases of human development. Indeed, our recent work pointed out the expression of non-classical HLA molecules as HLA-G in such cells, together with a favorable combination of B7 costimulators. Very few data in literature suggest that some of the immune features of the naïve cells are maintained after performing differentiation. The aim of this work was extending the knowledge on the expression of immunomodulatory molecules by naïve and differentiated WJ-MSC. To this purpose, WJMSC underwent differentiation to osteoblasts, adipocytes and hepatocyte-like cells. Differentiated cells were characterized, by both RT-PCR, ICC and histological stains for the acquisistion of the desired phenotypical features. RT-PCR and ICC were used to investigate the differential expression of immune-related molecules in control and differentiated cells. WJ-MSC resulted expressing diverse immunomodulatory molecules which spans from non-classical type I HLAs (i.e. HLA-E, -F, -G) , to further members of the B7 family, and of the CEA superfamily, for all of which in vivo immunomodulating functions are known. In addition, we demonstrated for the first time that the expression of these molecules is maintained after performing osteogenic, adipogenic or hepatogenic differentiation. Further experiments are undergoing to better evaluating the implications of these findings in the evolving field of liver regenerative medicine

    SELF-EXPANDABLE METAL STENT PLACEMENT FOR CLOSURE OF A LEAK AFTER TOTAL GASTRECTOMY FOR GASTRIC CANCER: REPORT ON THREE CASES AND REVIEW OF THE LITERATURE

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    consequently the management of this problem has become more critically focused than was previously possible. We report here three cases of placement of a partially silicone-coated SEMS (Evolution Controlled Release Esophageal Stent System, CookMedical, Winston-Salem, NC, USA) in patients who underwent total gastrectomy with Roux-en-Y end-to-side esophagojejunostomy for a gastric adenocarcinoma. The promising results of our report, despite the small number of patients, suggest that early stenting (through a partially silicone-coated SEMS) is a feasible alternative to surgical treatment in this subset of patients. In fact, in the treatment of leakage after total gastrectomy, plastic stents and totally covered metallic stents may not adhere sufficiently to the esophagojejunal walls and, as a result, migrate beyond the anastomosis. However, prospective studies with a larger number of patients might assess the real effectiveness and safety of this procedure

    Epha3 acts as proangiogenic factor in multiple myeloma

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    This study investigates the role of ephrin receptor A3 (EphA3) in the angiogenesis of Multiple Myeloma (MM) and the effects of a selective target of EphA3 by a specific monoclonal antibody on primary bone marrow endothelial cells (ECs) of MM patients.EphA3 mRNA and protein were evaluated in ECs of MM patients (MMECs), in ECs of patients with monoclonal gammopathies of undetermined significance (MGECs) and in ECs of healthy subjects (control ECs). The effects of EphA3 targeting by mRNA silencing (siRNA) or by the anti EphA3 antibody on the angiogenesis were evaluated. We found that EphA3 is highly expressed in MMECs compared to the other EC types. Loss of function of EphA3 by siRNA significantly inhibited the ability of MMECs to adhere to fibronectin, to migrate and to form tube like structures in vitro, without affecting cell proliferation or viability. In addition, gene expression profiling showed that knockdown of EphA3 down modulated some molecules that regulate adhesion, migration and invasion processes. Interestingly, EphA3 targeting by an anti EphA3 antibody reduced all the MMEC angiogenesis-related functions in vitro. In conclusion, our findings suggest that EphA3 plays an important role in MM angiogenesis

    Nuclear localization and new isoforms detection give new insights on Hsp10 functions in normal and cigarette smoke-stressed lung cells

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    Heat-shock protein (Hsp)10 is the co-chaperone for Hsp60 inside mitochondria, but it also resides outside the organelle. Variations in its levels and intracellular dis- tribution have been documented in pathological conditions, e.g. cancer and chronic obstructive pulmonary disease (COPD). Cigarette smoke (CS) is a potent stressor for the respiratory system, but its effects on the expression, function, and cellular locali- zation of mitochondrial chaperonins are still largely unknown. We studied in vivo (airways biopsies) the localization of Hsp10 and Hsp60 in patients (smokers and non-smokers) affected by mild-moderate COPD, and charac- terized the effects of non-lethal doses of CS extract (CSE) on the expression of these molecules in two human cell lines: lung fibroblasts (HFL-1) and bronchial epithelial cells (16HBE). We applied various in vitro methods: IHC, subcellular fractionation analyses (SFA), western blotting (WB), ICC, transmission electron microscopy (TEM) immunogold, chromati protein extracts (CPE), as well as 2D-gel based proteomics analyses. Bioinformatics was used to gather structural in silico data. IHC showed that Hsp10 occurred in nuclei of epithelial and lamina propria cells of bronchial mucosa from non-smokers and smokers. ICC, SFA, and WB showed that 16HBE and HFL-1 cells featured nuclear Hsp10, before and after CSE exposure; TEM immunogold further confirmed this observation. Proteomics data showed that CSE stimulation did not increase the levels of Hsp10 but did elicit qualitative changes as indicated by molecular weight and isoelectric point shifts. Bioinformatics analyses indicated that Hsp10 can localize in extramitochondrial sites, such as the nucleus, even if Hsp10 lacks known DNA-binding motifs or nuclear import signals. Hsp10 nuclear levels increased after CSE stimulation in HFL-1, indicating cytosol to nucleus migration, and although Hsp10 did not bind DNA, it bound a DNA-associated protein as suggested by CPE/gel retardation experiments. Data reported here indicate that in human cells of the respiratory mucosa there are at least three different intracellular locales for Hsp10: mitochondrial, nuclear, and cyto- solic. Further experiments are en route for the definition of the mechanisms underlying the transfer of Hsp10 to the nucleus and other cellular/extracellular compartments. This work was supported by grants from University of Palermo (FFR 2012) to GLR

    The effect of diversification on capital structure

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    Previously, empirical financial studies paid little attention to the role of diversification strategy on financial choices. The aim of the present study is to analyze the financing strategies of multibusiness firms, suggesting the relevance of sorting the diversification phenomena into its related and unrelated components. The implications of our findings are very relevant in that they explain earlier contradictory results on capital-structure determinants. The degree of product specialization/diversification and the direction of diversification (related or unrelated) translate into different corporate financial behaviours. In particular, the two types of diversification- related or unrelated, had opposite effects on debt. Specifically, a related-diversification strategy, which is associated with lower debt ratios, has a negative influence on leverage. By contrast, unrelated diversity, which is associated with higher debt usage, has a positive effect on debt. According to the coinsurance effect and the transaction-cost hypothesis, unrelated-diversified firms have a higher debt capacity and can assume more debt as a source of finance. Moreover, the capital-structure decisions of unrelated-diversified firms seem to be strictly aimed at reaching their target optimal debt level—a behaviour that is consistent with the trade-off hypothesis. On the other hand, related-diversified firms adjust more slowly towards their target capital structur

    Agency costs of free cash flow, internal capital markets and unrelated diversification

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    International audienceThis paper investigates whether free cash flow arguments or the internal capital market perspective better explains diversification decisions. Based on a unique panel of hand-collected data from listed and unlisted Italian firms for the 1980–2010 time period, the results of this study generally reveal the predominant role of the internal capital market arguments. The benefits of unrelated diversification, which include the avoidance of costly external financing, outweigh its costs, which involve opportunistic problems. Although the literature suggests two distinct forces concurrently affect diversification decisions, in the Italian context, financial benefits appear to be the prevailing motivation for unrelated diversification decisions. Furthermore, the internal capital market argument has a strong effect on decisions to engage in unrelated diversification, particularly with respect to firms that are sensitive to financial constraints
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