Giuseppe Porro - Academia.edu (original) (raw)
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Università degli Studi di Firenze (University of Florence)
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We introduce a new "Monotonic Imbalance Bounding" (MIB) class of matching methods for c... more We introduce a new "Monotonic Imbalance Bounding" (MIB) class of matching methods for causal inference with a surprisingly large number of attractive statistical properties. MIB generalizes and extends in several new directions the only existing class, "Equal Percent Bias Reducing" (EPBR), which is designed to satisfy weaker properties and only in expectation. We also offer strategies to obtain specific members of the MIB class, and analyze in more detail a member of this class, called Coarsened Exact Matching, whose properties we analyze from this new perspective. We offer a variety of analytical results and numerical simulations that demonstrate how members of the MIB class can dramatically improve inferences relative to EPBR-based matching methods. See also: Casual Inference
Research Square (Research Square), Feb 8, 2024
We explore in laboratory how donations to a charity can be influenced by the identifiability and ... more We explore in laboratory how donations to a charity can be influenced by the identifiability and the social categorization of the recipients. We find that donors give more, on average, to unidentified than to identified beneficiaries, since the latter are more likely to receive small donations than the former. Donations are the same, on average, to inand to out-group beneficiaries; however, an in-group recipient is more likely to receive a top or a very small donation than an out-group one, whereas the latter is more likely than the former to receive an intermediate donation. Both first-and second-order effects are associated to the Dynamic Identity Fusion Index elicited from participants toward the 'Multicultural world'.
Raccolta dei principali scritti di Paolo Santi e sui temi del sindacato, dei differenziali retrib... more Raccolta dei principali scritti di Paolo Santi e sui temi del sindacato, dei differenziali retributivi e del riformismo. Nell'ultima sezione sono raccolte le testimonianze di chi ha condiviso con Paolo Santi circostanze di vita e di lavoro
Chapman and Hall/CRC eBooks, Jun 18, 2021
Social Science Research Network, 2006
Papers in Regional Science, Sep 20, 2017
RePEc: Research Papers in Economics, 2004
Data matching is a typical statistical problem in non experimental and/or observational studies o... more Data matching is a typical statistical problem in non experimental and/or observational studies or, more generally, in cross-sectional studies in which one or more data sets are to be compared. Several methods are available in the literature, most of which based on a particular metric or on statistical models, either parametric or nonparametric. We present two methods to calculate a proximity which have the property of being invariant under monotonic transformations. These methods require at most the notion of ordering. We provide an open-source software in the form of a R package. The software is available at: https://r-forge.r-project.org/projects/rrp/ See also: PORRO G., IACUS S.M (2008). Invariant and metric free proximities for data matching: an R package. JOURNAL OF STATISTICAL SOFTWARE., vol. 25 (11), p. 1-22, ISSN: 1548-766
RePEc: Research Papers in Economics, 2008
RePEc: Research Papers in Economics, 2002
L'esame dell'archivio amministrativo di una delle maggiori società di fornitura... more L'esame dell'archivio amministrativo di una delle maggiori società di fornitura di lavoro interinale consente di osservare le specificità dell'offerta di lavoro temporaneo, rimaste in ombra negli studi realizzati finora sul lavoro temporaneo in Italia. I dati esaminati sono relativi alla fase di decollo delle società interinali (1998-2000). Attraverso un modello econometrico viene analizzato l'impatto delle caratteristiche dell'offerta (demografiche e di capitale umano) sulla probabilit`a di ottenere un avviamento al lavoro temporaneo. Evidenziando la rilevanza di alcune variabili relative al capitale umano e all'esperienza professionale, lo studio fa emergere il ruolodella società di fornitura nel promuovere l'occupabilità dei candidati al lavoro interinale. Alcuni dati sulle dinamiche salariali - lungi dal costituire una compiuta analisi degli aspetti retributivi del fenomeno interinale - confermano tuttavia le intuizioni dell'analisi econometrica.
RePEc: Research Papers in Economics, 2004
Significance, May 24, 2022
Chapman and Hall/CRC eBooks, Jun 18, 2021
describes the files in this study
We introduce a new "Monotonic Imbalance Bounding" (MIB) class of matching methods for c... more We introduce a new "Monotonic Imbalance Bounding" (MIB) class of matching methods for causal inference with a surprisingly large number of attractive statistical properties. MIB generalizes and extends in several new directions the only existing class, "Equal Percent Bias Reducing" (EPBR), which is designed to satisfy weaker properties and only in expectation. We also offer strategies to obtain specific members of the MIB class, and analyze in more detail a member of this class, called Coarsened Exact Matching, whose properties we analyze from this new perspective. We offer a variety of analytical results and numerical simulations that demonstrate how members of the MIB class can dramatically improve inferences relative to EPBR-based matching methods. See also: Casual Inference
Research Square (Research Square), Feb 8, 2024
We explore in laboratory how donations to a charity can be influenced by the identifiability and ... more We explore in laboratory how donations to a charity can be influenced by the identifiability and the social categorization of the recipients. We find that donors give more, on average, to unidentified than to identified beneficiaries, since the latter are more likely to receive small donations than the former. Donations are the same, on average, to inand to out-group beneficiaries; however, an in-group recipient is more likely to receive a top or a very small donation than an out-group one, whereas the latter is more likely than the former to receive an intermediate donation. Both first-and second-order effects are associated to the Dynamic Identity Fusion Index elicited from participants toward the 'Multicultural world'.
Raccolta dei principali scritti di Paolo Santi e sui temi del sindacato, dei differenziali retrib... more Raccolta dei principali scritti di Paolo Santi e sui temi del sindacato, dei differenziali retributivi e del riformismo. Nell'ultima sezione sono raccolte le testimonianze di chi ha condiviso con Paolo Santi circostanze di vita e di lavoro
Chapman and Hall/CRC eBooks, Jun 18, 2021
Social Science Research Network, 2006
Papers in Regional Science, Sep 20, 2017
RePEc: Research Papers in Economics, 2004
Data matching is a typical statistical problem in non experimental and/or observational studies o... more Data matching is a typical statistical problem in non experimental and/or observational studies or, more generally, in cross-sectional studies in which one or more data sets are to be compared. Several methods are available in the literature, most of which based on a particular metric or on statistical models, either parametric or nonparametric. We present two methods to calculate a proximity which have the property of being invariant under monotonic transformations. These methods require at most the notion of ordering. We provide an open-source software in the form of a R package. The software is available at: https://r-forge.r-project.org/projects/rrp/ See also: PORRO G., IACUS S.M (2008). Invariant and metric free proximities for data matching: an R package. JOURNAL OF STATISTICAL SOFTWARE., vol. 25 (11), p. 1-22, ISSN: 1548-766
RePEc: Research Papers in Economics, 2008
RePEc: Research Papers in Economics, 2002
L'esame dell'archivio amministrativo di una delle maggiori società di fornitura... more L'esame dell'archivio amministrativo di una delle maggiori società di fornitura di lavoro interinale consente di osservare le specificità dell'offerta di lavoro temporaneo, rimaste in ombra negli studi realizzati finora sul lavoro temporaneo in Italia. I dati esaminati sono relativi alla fase di decollo delle società interinali (1998-2000). Attraverso un modello econometrico viene analizzato l'impatto delle caratteristiche dell'offerta (demografiche e di capitale umano) sulla probabilit`a di ottenere un avviamento al lavoro temporaneo. Evidenziando la rilevanza di alcune variabili relative al capitale umano e all'esperienza professionale, lo studio fa emergere il ruolodella società di fornitura nel promuovere l'occupabilità dei candidati al lavoro interinale. Alcuni dati sulle dinamiche salariali - lungi dal costituire una compiuta analisi degli aspetti retributivi del fenomeno interinale - confermano tuttavia le intuizioni dell'analisi econometrica.
RePEc: Research Papers in Economics, 2004
Significance, May 24, 2022
Chapman and Hall/CRC eBooks, Jun 18, 2021