Margherita Comola
Biographic Data
| ID | 383699 |
|---|---|
| NAME | Margherita Comola |
| GIVEN NAMES | Margherita |
| FAMILY NAME | Comola |
| SIGNATURE | COMOLA M |
| AFFILIATIONS | Paris School of Economics |
| ORCID | 0000-0001-6836-1759 |
| VERIFIED | No |
| TOTAL WORKS | 32 |
| TOTAL CITATIONS | 18 |
| AUTHOR COUNT | 32 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 3 |
Estimating Network Externalities in Undirected Link Formation Games
This paper explores the existence of network externalities in link formation games of incomplete information. It extends the structural estimation method in Leung (2015) to games where links are undirected and proposals are only partially observed. We provide an econometric characterization of the proposed two‐step estimator and document its performance through a simulation exercise. When the estimation method is applied to data on risk‐sharing a…
Experimental evidence on covert bargaining markets
Experimental Evidence on Covert Bargaining Markets
Heterogeneous Peer Effects and Gender-Basedinterventions for Teenage Obesity
Social networks and economic transformation: Evidence from a resettled village in Brazil
Competing for Influence in Networks Through Strategic Targeting
We experimentally investigate how players with opposing views compete for influence through strategic targeting in networks. We varied the network structure, the relative influence of the opponent, and the heterogeneity of the nodes’initial opinions. Although most players adopted a best-response strategy based on their relative influence, we also observed behaviors deviating from this strategy, such as the tendency to target central nodes and avo…
The Interplay Among Savings Accounts and Network-Based Financial Arrangements: Evidence from a Field Experiment
Experimental Evidence on Covert Bargaining Markets
The Interplay Among Savings Accounts and Network-Based Financial Arrangements: Evidence from a Field Experiment
This paper studies how formal financial access affects network-based financial arrangements. We use a field experiment that granted access to a savings account to a random subset of households in 19 Nepalese villages. Exploiting a unique panel dataset that follows all bilateral informal financial transactions before and after the intervention, we show that households that were offered access to an account increased their loans and total transfers…
Learning About Farming: Innovation and Social Networks in a Resettled Community in Brazil
Learning About Farming: Innovation and Social Networks in a Resettled Community in Brazil
Experimental Evidence on Semi-Structured Bargaining with Private Information
Treatment Effect Accounting for Network Changes
Networks may rewire in response to interventions. We propose a measure of the treatment effect when an intervention affects the structure of a social network. We develop a treatment-response model that incorporates dynamic peer effects and provide its identification conditions and the associated instrumental-variable strategy. We illustrate our estimation procedure using a panel data set containing information on a financial network before and af…
An experimental study on decentralized networked markets
The Missing Transfers: Estimating Misreporting in Dyadic Data
Many studies have used self-reported dyadic data without exploiting the pattern of discordant answers. In this article we propose a maximum likelihood estimator that deals with misreporting in a systematic way. We illustrate the methodology using dyadic data on interhousehold transfers from the village of Nyakatoke in Tanzania. We show that not taking reporting bias into account leads to serious underestimation of the total amount of transfers be…
An Experimental Study of Decentralized Link Formation with Competition
We design a laboratory experiment to investigate bilateral link formation in a setting where payoffs are pair-specific. Our link formation rule is decentralized and players can make link offers and counteroffers, as in a Beckerian marriage market. The game is designed in such a way that a stable equilibrium configuration exists and does not depend on conditions such as initial configuration or order of move. We test whether the theoretical equili…
Estimating Mis-Reporting in Dyadic Data: Are Transfers Mutually Beneficial
Do Interventions Change the Network? A Panel Peer-Effect Model Accounting for Endogenous Network Changes
The Formation of Migrant Networks
Formation of Migrant Networks
In this paper, we provide the first direct evidence on the internal structure of the migrant social network. By using a purposely designed survey on Sri Lankan immigrants living in Milan, we show that the pattern of within‐group link formation is heterogeneous across immigrants, and differentiated according to the network function (i.e., accommodation, credit, job‐finding). We find that migrants tend to interact with co‐nationals who come from ne…
Testing Unilateral and Bilateral Link Formation
The literature has shown that network architecture depends crucially on whether links are formed unilaterally or bilaterally, that is, on whether the consent of both nodes is required for a link to be formed. They propose a test of whether network data is best seen as an actual link or willingness to link and, in the latter case, whether this link is generated by an unilateral o rbilateral link formation process. They illustrate this test using s…
The Formation of Migrant Networks
The Formation of Migrant Networks
Intervention-Driven Changes in Social Networks and Their Effects on Household Outcomes
Can Governments Boost People's Sense of Well-Being? The Impact of Selected Labour Market and Health Policies on Life Satisfaction
Testing Unilateral and Bilateral Link Formation
The literature has shown that network architecture depends crucially on whether links are formed unilaterally or bilaterally, that is, on whether the consent of both nodes is required for a link to be formed. They propose a test of whether network data is best seen as an actual link or willingness to link and, in the latter case, whether this link is generated by an unilateral o rbilateral link formation process. They illustrate this test using s…
Can Governments Boost People's Sense of Well-Being? The Impact of Selected Labour Market and Health Policies on Life Satisfaction
The Missing Transfers: Estimating Misreporting in Dyadic Data
Many studies have used self-reported dyadic data without exploiting the pattern of discordant answers. In this article we propose a maximum likelihood estimator that deals with misreporting in a systematic way. We illustrate the methodology using dyadic data on interhousehold transfers from the village of Nyakatoke in Tanzania. We show that not taking reporting bias into account leads to serious underestimation of the total amount of transfers be…
Democracies, Politics and Arms Supply: A Bilateral Trade Equation
Educational Programs in Rural Nepal: Peer Communication and Information Spillovers
The Network Structure of Mutual Support Links: Evidence from Rural Tanzania
How Does Decentralized Minimum Wage Setting Affect Employment and Informality? The Case of Indonesia
The Indonesian labor market is characterized by widespread and growing informality (defined as non‐salaried work). To what extent can the growth in informality be attributed to a sharp increase in the real value of the minimum wage since 2001, when minimum‐wage setting was decentralized to the provincial governments? To answer this and related questions we use survey data on the labor market, on household income and expenditure, and on the indust…
What Makes for a Better Life? The Determinants of Subjective Well- Being in Oecd Countries - Evidence From the Gallup World Poll: The Determinants of Subjective Well-Being in OECD Countries – Evidence…
This paper uses data from the Gallup World Poll to explore the determinants of subjective well-being. The paper builds on the existing literature on the determinants of subjective well-being in three areas. First, the paper systematically examines the drivers of measures of affect as well as the determinants of life satisfaction that are more prevalent in the existing literature. Overall, items relating to health status, personal security, and fr…
Democracies, Politics, and Arms Supply
Throughout the 20th century arms have not only been tradable goods, but also policy instruments. This paper focuses on countries supplying major conventional weapons (MCW), and investigates whether changes in political conditions impact the quantity of MCW supplied to third countries. In particular, it concentrates on democratic exporters and estimates a gravity‐type panel tobit for the years 1975–2004. Results suggest that the exporter's chief e…
Salaried employment and earnings in Indonesia: New evidence on the selection bias
This article uses household survey data to estimate the determinants of earnings in Indonesia, a country where nonsalaried work is widespread and earnings data are available for salaried employees only. We deal with the selection bias by estimating a Full-Information Maximum Likelihood (FIML) system of equations, where selection into the labour market is modelled in a multinomial setting. We find that some estimated parameters of the earnings equ…
The Formation of Migrant Networks
The Formation of Migrant Networks
Intervention-Driven Changes in Social Networks and Their Effects on Household Outcomes
Can Governments Boost People's Sense of Well-Being? The Impact of Selected Labour Market and Health Policies on Life Satisfaction
Estimating Mis-Reporting in Dyadic Data: Are Transfers Mutually Beneficial
Do Interventions Change the Network? A Panel Peer-Effect Model Accounting for Endogenous Network Changes
The Formation of Migrant Networks
Formation of Migrant Networks
In this paper, we provide the first direct evidence on the internal structure of the migrant social network. By using a purposely designed survey on Sri Lankan immigrants living in Milan, we show that the pattern of within‐group link formation is heterogeneous across immigrants, and differentiated according to the network function (i.e., accommodation, credit, job‐finding). We find that migrants tend to interact with co‐nationals who come from ne…
Testing Unilateral and Bilateral Link Formation
The literature has shown that network architecture depends crucially on whether links are formed unilaterally or bilaterally, that is, on whether the consent of both nodes is required for a link to be formed. They propose a test of whether network data is best seen as an actual link or willingness to link and, in the latter case, whether this link is generated by an unilateral o rbilateral link formation process. They illustrate this test using s…
An Experimental Study of Decentralized Link Formation with Competition
We design a laboratory experiment to investigate bilateral link formation in a setting where payoffs are pair-specific. Our link formation rule is decentralized and players can make link offers and counteroffers, as in a Beckerian marriage market. The game is designed in such a way that a stable equilibrium configuration exists and does not depend on conditions such as initial configuration or order of move. We test whether the theoretical equili…
An experimental study on decentralized networked markets
The Missing Transfers: Estimating Misreporting in Dyadic Data
Many studies have used self-reported dyadic data without exploiting the pattern of discordant answers. In this article we propose a maximum likelihood estimator that deals with misreporting in a systematic way. We illustrate the methodology using dyadic data on interhousehold transfers from the village of Nyakatoke in Tanzania. We show that not taking reporting bias into account leads to serious underestimation of the total amount of transfers be…
Treatment Effect Accounting for Network Changes
Networks may rewire in response to interventions. We propose a measure of the treatment effect when an intervention affects the structure of a social network. We develop a treatment-response model that incorporates dynamic peer effects and provide its identification conditions and the associated instrumental-variable strategy. We illustrate our estimation procedure using a panel data set containing information on a financial network before and af…
Learning About Farming: Innovation and Social Networks in a Resettled Community in Brazil
Learning About Farming: Innovation and Social Networks in a Resettled Community in Brazil
Experimental Evidence on Semi-Structured Bargaining with Private Information
The Interplay Among Savings Accounts and Network-Based Financial Arrangements: Evidence from a Field Experiment
This paper studies how formal financial access affects network-based financial arrangements. We use a field experiment that granted access to a savings account to a random subset of households in 19 Nepalese villages. Exploiting a unique panel dataset that follows all bilateral informal financial transactions before and after the intervention, we show that households that were offered access to an account increased their loans and total transfers…
The Interplay Among Savings Accounts and Network-Based Financial Arrangements: Evidence from a Field Experiment
Economics (23 works) · Business (15 works) · Psychology (12 works) · Computer Science (10 works) · Microfinance and Financial Inclusion (10 works) · Geography (8 works) · Political science (8 works) · Econometrics (7 works) · Poverty, Education, and Child Welfare (7 works) · Mathematics (6 works)