Search results for "Propensity Score Matching"
showing 10 items of 101 documents
Re-examining the migration–trade link using province data: An application of the generalized propensity score
2013
Abstract The migration–trade link has been studied extensively since the mid nineties, finding a positive impact through different channels. Based on the generalized propensity score (GPS) methodology, we estimate a dose–response function, depicting a non-linear impact of immigration on exports using province data for Spain and Italy. For both countries the response of province exports to more immigrants from a given nationality is always positive, although varies with the level of immigrants. First we find neither minimum threshold nor exhaustion point in the effectiveness of the immigration networks on province exports. Second we find that the value of the potential bilateral exports reac…
Heterogeneidad en el impacto de la política de becas en la escolaridad secundaria postobligatoria en España: un análisis por subgrupos poblacionales
2013
El presente trabajo analiza el impacto de las becas sobre la probabilidad de finalizar con éxito el nivel secundario postobligatorio en España en el caso de diferentes subgrupos poblacionales. Se aplica un diseño cuasiexperimental (Propensity score matching) a partir de la Encuesta de Condiciones de Vida (ECV-2006). Los resultados confirman la existencia de efectos diferenciales positivos (con relación al impacto medio) de la política educativa en el caso de las mujeres y de los alumnos provenientes de hogares desfavorecidos, demostrando la existencia de heterogeneidad en el impacto de la política analizada.
Foreign capital, credit constraints and continuity of firms’ R&D
2015
ABSTRACTIn this article, we investigate the role of foreign capital participation as a means for firms to overcome the obstacle posed by credit constraints to sustain R&D investments. Using data for Spanish manufacturing firms in the period 1990–2006, we show that firms with foreign capital are significantly less likely to stop already initiated R&D projects and also more likely to sustain R&D investment when facing credit constraints. Our results are robust to positive selection into foreign capital participation, which we control through a set of variables chosen from a propensity score estimation, and to firms’ fixed-effects.
Foreign Taleovers and Wages: Theory and Evidence from Hungary
2005
This study discriminates FDI technology spillover from learning effects. Whenever learning takes time, our model predicts that foreign investors deduct the economic value of learning from wages of inexperienced workers and add it to experienced ones to prevent them from moving to local competitors. Hence, the national wage bill is unaffected by foreign takeovers. In contrast to learning, technology spillover effects occur whenever a worker with MNE experience contributes more to local firms’ than to MNEs’ productivity. In this case, experienced MNE workers are hired by local firms and the host country obtains a welfare gain. We investigate empirically wages, productivity, and worker turnove…
Selection bias ed incentivi alle imprese nei programmi per lo sviluppo locale: una valutazione ex-post
2015
This paper focuses on the evaluation of an aid scheme included in a larger local development program realized in Italy during the 2000-2006 cycle of EU Structural Funds. It follows a previous analysis (Cusimano, Mazzola, 2014) on the ex-post evaluation of the effects of the aid schemes included in the so-called territorial integrated projects (tips) and aims at identifying the possible presence of selection bias in measuring the effectiveness of the policy. After running an empirical analysis based on several propensity score matching (psm) methods, we show that, at least partially, the positive results previously obtained may not be related to an effective success of the policy, but could …
Microfinance beyond self-employment: Evidence for firms in Bulgaria
2017
This paper provides new evidence on the impact of microfinance on job creation beyond self-employment. We examine wage-employment effects for a typical program in Eastern Europe with average loan sizes that are considerably above what has been studied so far. We apply propensity score matching extended by a difference-in-differences estimator to panel data from an individual-lending program to firms in Bulgaria. Our results indicate that microcredit has very positive effects on job creation. Participating firms have on average 2.5 (or 33 percent) more employees two years after receiving a microcredit than matched non-participants. This strong effect seems to be related to a certain loan siz…
Post-Enlargement Return Migrants' Earnings Premium: Evidence from Latvia
2008
The paper exploits a recent survey of over ten thousand economically active residents of Latvia; about 5% of respondents have worked abroad over the last three years, while 12% have family members with such experience. Post-enlargement labor migration from Latvia has been predominantly low-skilled, yet return migrants when compared to stayers are, on average, more educated and less likely to work as unskilled manuals. We combine instrumental variable and propensity score matching methods to study the effect of foreign experience on earnings. Results suggest that return migrants are neither positively nor negatively selected in terms of earnings. However, after controlling for worker demogra…
Effectiveness of First-Line Bevacizumab in Metastatic Colorectal Cancer: The Observational Cohort Study GRETA
2018
Background: Scant real-world data exist on the clinical outcomes associated with the use of bevacizumab-containing chemotherapy (B+CT) in patients with metastatic colorectal cancer (mCRC). The primary objective of the GRETA cohort study was to compare the overall survival (OS) of patients with mCRC treated with first-line B+CT versus chemotherapy (CT) alone, in an Italian clinical practice setting. Materials and Methods: Incident patients with mCRC were identified during the period 2010–2012 from five population-based cancer registries in Italy. Cases were linked to regional health care utilization databases to obtain the entire spectrum of health services provided to each patient. Patients…
Is there a need to widely prescribe antibiotics in patients hospitalized with COVID-19?
2021
Highlights • Antibiotics were a main part of COVID-19 treatments during the first epidemic peak. • Bacterial coinfections seem to be rare, especially if no ICU transfer needed. • We studied the place of antibiotics and the impact on prognosis of patients. • Antibiotics were prescribed if more severe infection and has no impact on prognosis. • We think that antibiotic therapy must be not widely prescribed.
Cross-sectional associations between angiotensin-converting enzyme inhibitor use and cancer diagnosis in US adults
2020
The objective of the present study was to investigate the association between angiotensin-converting enzyme (ACE) inhibitor use and cancer incidence (overall, and breast, prostate, and colorectal cancers specifically) in a large representative sample of US adults. Cross-sectional data on cancer diagnosis, timing of cancer diagnosis, ACE inhibitor use, and other characteristics were extracted from 49 512 adults aged ≥ 20 years participating in the National Health and Nutrition Examination Survey (1999–2016). Multivariable-logistic and propensity score matching (PSM) regressions examined the relationship between pre-diagnosis use of ACE inhibitors and diagnosis of all cancers, and breast, pro…