Results

CEP discussion paper

Who can produce what? Firm capabilities and product entry

Which firms supply which products? Modelling multi-product firms under heterogeneous markups, we recover firms? costs for produced products and develop an algorithm inspired by recommender systems to predict costs for un...Read more...

CEP discussion paper

Explaining the predictive performance of police in cases of domestic abuse

Police in England and Wales are asked to predict the likelihood of serious recidivism in domestic abuse cases, with little support beyond a flawed questionnaire. To analyze their decisions, we first develop methods to de...Read more...

Journal article

International Economics:

Reassessing EU comparative advantage: the role of technology

Based on a sufficient statistics approach, we show how the state of technology of European industries relative to the rest of the world can be empirically assessed in a way that is simple in terms of computation, parsimo...Read more...

CEP policy analysis

Domestic abuse: improving risk assessment and response by the police (policy brief)

Domestic abuse remains a pervasive challenge worldwide. According to data from the Office for National Statistics, domestic abuse affects one in five people aged 16 and above in the UK. In 2021, the then Conservative gov...Read more...

CEP discussion paper

The global effects of carbon border adjustment mechanisms

Climate change poses a collective action problem: individual countries bear the costs of carbon regulation, while the benefits are shared globally. Carbon border adjustment mechanisms (CBAMs), which are currently being i...Read more...

CentrePiece article

Police workload linked to victim statement withdrawals

Partners or family members are responsible for nearly half of the women killed each year in the UK, and many of these deaths follow long periods of domestic abuse. Yet in recent years, the rate of statement withdrawal by...Read more...

Journal article

Cambridge Journal of Evidence-Based Policing:

Can social media reach isolated domestic abuse victims? Evidence from a randomized control trial during the Covid-19 lockdown

Research Questions Can social media reach isolated domestic abuse victims? Secondly, does providing victims with more information and a safer means of contacting police change their likelihood of domestic abuse reporting...Read more...

Blog

LSE British Politics and Policy:

Higher workload for police officers correlates with victims withdrawing statements

In the UK, partners or family members are responsible for nearly half of all female homicides. But there is an increasing rate of statement withdrawal from victims in high-risk domestic abuse cases. Tom Kirchmaier and Ek...Read more...

Journal article

American Economic Journal: Applied Economics:

Measuring absolute income mobility: lessons from North America and Europe

We use linked parent-child administrative data for five countries in North America and Europe, as well as detailed survey data for two more, to investigate methodological challenges in the estimation of absolute income m...Read more...

CEP discussion paper

Firms in product space: adoption, growth and competition

Which products are potentially produced together? When demand for a product increases, which firms will supply it? Using multi-product production patterns within and across firms, we recover a continuous cost based dista...Read more...

Journal article

Journal of Public Economics:

Football, alcohol, and domestic abuse

We study the role of alcohol and emotions in explaining the dynamics in domestic abuse following major football games. We match confidential and uniquely detailed individual call data from Greater Manchester with the tim...Read more...

CEP discussion paper

Rethinking revealed comparative advantage with micro and macro data

The Balassa's index of revealed comparative advantage does not necessarily reveal Ricardian comparative advantage. We propose an alternative sufficient statistics approach based on a quantitative standard trade model inc...Read more...

Journal article

Management Science:

Information spillovers in experience goods competition

Trialing an experience good allows consumers to learn their value for the sampled good and also informs beliefs about their value for similar products. These demand-side information spillovers across products create a re...Read more...

Journal article

American Economic Review:

Globalization and pandemics

We provide theory and evidence on the relationship between globalization and pandemics. Business travel facilitates trade and travel leads to human interactions that transmit disease. Trade-motivated travel generates an ...Read more...

CEP discussion paper

Criminal charges, risk assessment and violent recidivism in cases of domestic abuse

Domestic abuse is a pervasive global problem. Here we analyze two approaches to reducing violent DA recidivism. One involves charging the perpetrator with a crime; the other provides protective services to the victim on ...Read more...

CEP Insights

Crime

What can economics tell us about crime? Economists have discovered that young people who leave school during a recession are more likely to end up in prison than those who enter the labour market when the economy is buoy...Read more...

Journal article

Nature Communications:

The effect of Covid certificates on vaccine uptake, health outcomes, and the economy

In the COVID-19 pandemic many countries required COVID certificates, proving vaccination, recovery, or a recent negative test, to access public and private venues. We estimate their effect on vaccine uptake for France, G...Read more...

CentrePiece article

Football, alcohol and domestic abuse

Reports of domestic abuse rise after football matches. Ria Ivandic, Tom Kirchmaier and Neus Torres-Blas find that binge drinking is the key factor - with alcohol-linked violence against live-in partners happening more of...Read more...

CEP discussion paper

Omnia Juncta in Uno*: foreign powers and trademark protection in Shanghai's concession era

We examine how trademark protection - a prevalent but underexplored intellectual property right - affects international firms and market outcomes in an emerging economy. Exploiting the unexpected introduction of China's ...Read more...

Blog

English Premier League podcast: EPLpod:

Football, alcohol and domestic abuse

Domestic abuse increases following football games - and this increase is driven by alcohol-related abuse, a new study from the London School of Economics and Political Science finds. The research from the LSE's Centre fo...Read more...

CEP discussion paper

Firm export responses to tariff hikes

We study how firms react to unexpected increases in import tariffs. We identify our results from a sudden removal of American preferential tariffs applied on Argentine imports under the Generalized System of Preferences,...Read more...

CEP discussion paper

Football, alcohol and domestic abuse

We study the role of alcohol and emotions in explaining the dynamics in domestic abuse following major football games. We match confidential and uniquely detailed individual call data from Greater Manchester with the tim...Read more...

Journal article

Journal of Empirical Legal Studies:

Comparing conventional and machine-learning approaches to risk assessment in domestic abuse cases

We compare predictions from a conventional protocol-based approach to risk assessment with those based on a machine-learning approach. We first show that the conventional predictions are less accurate than, and have simi...Read more...

CEP discussion paper

Changing patterns of domestic abuse during Covid-19 lockdown

The effects of preventing a COVID-19 health crisis have had unintended consequences on domestic abuse (DA) victimization. We contribute to the literature on domestic abuse in lockdown by providing insight on how changing...Read more...

CentrePiece article

In brief... Tackling domestic violence using machine learning

Artificial intelligence could help to protect victims of domestic violence, according to research by Jeffrey Grogger, Ria Ivandic and Tom Kirchmaier...Read more...

CentrePiece article

Domestic abuse in times of quarantine

Crime economists Ria Ivandic and Tom Kirchmaier look at data on domestic abuse calls to the police in London....Read more...

Journal article

Review of Industrial Organization:

The gravity of intermediate goods

One of the puzzles of the gravity literature is the persistent effect of distance on trade flows, despite the dramatic fall in trade costs during the last few decades (Disdier and Head in Rev Econ Stat 90(1):37?48, 2008)...Read more...

CEP discussion paper

Environmental preferences and technological choices: is market competition clean or dirty?

We investigate the effects of consumers' environmental concerns and market competition on firms' decisions to innovate in 'clean' technologies. Agents care about their consumption and environmental footprint; firms pursu...Read more...

CEP discussion paper

Comparing conventional and machine-learning approaches to risk assessment in domestic abuse cases

We compare predictions from a conventional protocol-based approach to risk assessment with those based on a machine-learning approach. We first show that the conventional predictions are less accurate than, and have simi...Read more...

Journal article

Quarterly Journal of Economics:

Measuring aggregate price indices with taste shocks: theory and evidence for CES preferences

We develop an approach to measuring the cost of living for CES preferences that treats demand shocks as taste shocks that are equivalent to price shocks. In the presence of relative taste shocks, the Sato-Vartia price in...Read more...

Journal article

The Quarterly Journal of Economics:

The unequal gains from product innovations: evidence from the US retail sector

This article examines how product innovations led to inflation inequality in the United States from 2004 to 2015. Using scanner data from the retail sector, I find that annual inflation for retail products was 0.661 (std...Read more...

Journal article

Review of Economic Studies:

Carry-along trade

Large multi-product firms dominate international trade flows. This paper documents new facts about multi-product manufacturing exporters that are not easily reconciled with existing multi-product models. Using novel link...Read more...

Journal article

Journal of Political Economy:

Monopolistic competition and optimum product diversity under firm heterogeneity

Empirical work has drawn attention to the high degree of productivity differences within industries and their role in resource allocation. This paper examines the allocational efficiency of such markets. Productivity dif...Read more...

CEP discussion paper

Managing trade: evidence from China and the US

We study how management practices shape export performance using matched production-trade-management data for Chinese and American firms and a randomized control trial in India. Better managed firms are more likely to ex...Read more...

Journal article

Journal of Economic Literature:

Global firms

Research in international trade has changed dramatically over the last twenty years, as attention has shifted from countries and industries towards the firms actually engaged in international trade. The now-standard hete...Read more...

Journal article

Research in Economics:

Monopolistic competition and optimum product selection: why and how heterogeneity matters

After some decades of relative oblivion, the interest in the optimality properties of monopolistic competition has recently re-emerged due to the availability of an appropriate and parsimonious framework to deal with fir...Read more...

Journal article

Journal of Economic Perspectives:

The economic consequences of family policies: lessons from a century of legislation in high-income countries

By the early 21st century, most high-income countries have put into effect a host of generous and virtually gender-neutral parental leave policies and family benefits, with the multiple goals of gender equity, higher fer...Read more...

CEP discussion paper

Product diversification in Indian manufacturing

The presence of global value chains challenges the neoclassical idea of the firm since it implies firms are not monolithic but are rather interdependent on the larger economic environment. Examining establishments, the s...Read more...

CEP discussion paper

The hospital as a multi-product firm: the effect of hospital competition on value-added indicators of clinical quality

There is increasing international interest in using Patient Reported Outcome Measures (PROMs) to assess health care provider performance. PROMs are a fundamental advance on existing indicators of health care quality in t...Read more...

CEP discussion paper

Multi-product firms and product quality

We examine the global operations of multi-product firms. We present a flexible heterogeneous-firm trade model with either limited or strong scope for quality differentiation. Using customs data for China during 2002-2006...Read more...

Journal article

The Economic Journal:

Unemployment and domestic violence: theory and evidence

Does rising unemployment really increase domestic violence as many commentators expect? The contribution of this article is to examine how changes in unemployment affect the incidence of domestic abuse. Theory predicts t...Read more...

Journal article

Journal of International Economics:

Multi-product firms and product quality

We examine the global operations of multi-product firms. We present a flexible heterogeneous-firm trade model with either limited or strong scope for quality differentiation. Using customs data for China during 2002?2006...Read more...

CEP discussion paper

Product switching and the business cycle

This paper explores role of product adding and dropping within manufacturing firms over the business cycle. While a substantial body of work has explored the importance of the extensive margins of firm entry and exit in ...Read more...

CEP discussion paper

Global firms

Research in international trade has changed dramatically over the last twenty years, as attention has shifted from countries and industries towards the firms actually engaged in international trade. The now-standard hete...Read more...

CEP discussion paper

Swimming upstream: input-output linkages and the direction of product adoption

Multiproduct firms dominate production, and their product turnover contributes substantially to aggregate growth. Firms continually adapt their product mix, but what determines which products firms expand into? Theories ...Read more...

Journal article

The Economic Journal:

Income and population growth

Do populations grow as countries become richer? In this study we estimate the effects on population growth of shocks to national income that are plausibly exogenous and unlikely to be driven by technological change. For ...Read more...

Journal article

The Review of Economics and Statistics:

Intermediaries in international trade: products and destinations

This paper examines the factors that give rise to intermediaries in exporting and explores the implications for trade volumes. Export intermediaries such as wholesalers serve different markets and export different produc...Read more...

CentrePiece article

Unemployment and domestic violence

Contrary to popular belief, the incidence of domestic violence in Britain does not seem to have risen during the recession. But according to research by Jonathan Wadsworth and colleagues, men and women have experienced d...Read more...

CEP discussion paper

Unemployment and domestic violence: theory and evidence

Is unemployment the overwhelming determinant of domestic violence that many commentators expect it to be? The contribution of this paper is to examine, theoretically and empirically, how changes in unemployment affect th...Read more...

CEP discussion paper

Monopolistic Competition and Optimum Product Selection: Why and How Heterogeneity Matters

After some decades of relative oblivion, the interest in the optimality properties of monopolistic competition has recently re-emerged due to the availability of an appropriate and parsimonious framework to deal with fir...Read more...

CEP discussion paper

On the Measurement of Trade Costs: Direct vs. Indirect Approaches to Quantifying Standards and Technical Regulations

In this article, we review the literature on the measurement of trade costs in international trade with a special emphasis on nontariff measures and in particular on standards and technical regulations. We distinguish `d...Read more...

CEP discussion paper

Is the International Border Effect Larger than the Domestic Border Effect? Evidence from U.S. Trade

Many studies have found that international borders represent large barriers to trade. But how do international borders compare to domestic border barriers? We investigate international and domestic border barriers in a u...Read more...

CEP discussion paper

Reserve Accumulation, Growth and Financial Crises

We present a model that reproduces two salient facts characterizing the international monetary system: i) Faster growing countries are associated with lower net capital inflows and ii) Countries that grow faster accumula...Read more...

CEP discussion paper

Market Size, Competition, and the Product Mix of Exporters

We build a theoretical model of multi-product firms that highlights how competition across market destinations affects both a firm's exported product range and product mix. We show how tougher competition in an export ma...Read more...

CEP discussion paper

Intermediaries in International Trade: Direct Versus Indirect Modes of Export

This paper examines the factors that give rise to intermediaries in exporting and explores the implications for trade volumes. Export intermediaries such as wholesalers serve different markets and export different produc...Read more...

CEP discussion paper

Discussion Sessions Coupled with Microfinancing May Enhance the Roles of Women in Household Decision-Making in Burundi

The empowerment of women within households remains a major issue around the world including in Africa. We have conducted a study in Burundi coupling discussion sessions with microfinancing to determine if they enhance th...Read more...

CEP discussion paper

Trade as an Engine of Creative Destruction: Mexican Experience with Chinese Competition

This paper exploits the surge in Chinese exports from 1994 to 2004 as a natural experiment to evaluate the effects of a unilateral low wage trade and competition shock to producers in Mexico. We find that this shock caus...Read more...

CEP discussion paper

Capital Flows and Asset Prices

After liberalizing international transactions of financial assets, many countries experience large swings in asset prices, capital flows, and aggregate production. This paper studies how the adjustment to capital account...Read more...

CEP discussion paper

The Margins of US Trade

Recent research in international trade emphasizes the importance of firms? extensive margins for understanding overall patterns of trade as well as how firms respond to specific events such as trade liberalization. In th...Read more...

CEP discussion paper

Product Market Deregulation and the U.S. Employment Miracle

We consider the dynamic relationship between product market entry regulation and equilibrium unemployment. The main theoretical contribution is combining a job matching model with monopolistic competition in the goods ma...Read more...

CEP discussion paper

Mapping Prices into Productivity in Multisector Growth Models

Two issues related to mapping a multi-sector model into a reduced-form value-added model are often neglected: the composition of intermediate goods, and the distinction between value added productivity and gross output p...Read more...

CEP discussion paper

U.S. Labor Market Dynamics Revisited

The picture of U.S. labor market dynamics is opaque. Empirical studies have yielded contradictory findings and debates have emerged regarding their implications. This paper aims at clarifying the picture, which is import...Read more...

CEP discussion paper

Multi-Product Firms and Trade Liberalization

This paper develops a general equilibrium model of multi-product firms and analyzes their behavior during trade liberalization. Firm productivity in a given product is modeled as a combination of firm-level ?ability? and...Read more...

CEP discussion paper

Gross Worker Flows in the Presence of Informal Labor Markets. The Mexican Experience 1987-2002

This paper applies recent advances in the study of labor market dynamics to a representative developing country with a large unregulated of ?informal? sector, Mexico. It finds, first, that the formal salaried sector show...Read more...

CEP discussion paper

Multi-Product Firms and Product Switching

This paper examines the frequency, pervasiveness and determinants of product switching among U.S. manufacturing firms. We find that two-thirds of firms alter their mix of five-digit SIC products every five years, that on...Read more...

CEP discussion paper

Products and Productivity

Firms' decisions about which goods to produce are often made at a more disaggregate level than the data observed by empirical researchers. When products differ according to production technique or the way in which they e...Read more...

CEP discussion paper

Labor and the Market Value of the Firm

What role does labor play in a firm?s market value? We explore this question using a production-based asset pricing model with frictions in the adjustment of both capital and labor. We posit that hiring of labor is akin ...Read more...

CEP discussion paper

How Does Product Market Competition Shape Incentive Contracts?

This paper studies the effect of product market competition on the explicit compensation packages that firms offer to their CEOs, executives and workers. We use a large sample of both traded and non-traded UK firms and e...Read more...

CEP discussion paper

Product Market Competition Returns to Skill and Wage Inequality

This paper shows that increasing product market competition can have a direct impact on the employment relationship and on wage inequality. I develop a simple model in which an increase in product market competition incr...Read more...

CEP discussion paper

Executive Compensation and Product Market Competition

The aim of this paper is to study the effects of product market competition on the explicit compensation packages that firms offer to their executives. In order to measure the net effect of competition we use two differe...Read more...

CEP discussion paper

Product Choice and Product Switching

This paper develops a model of endogenous product selection by firms. The theory is motivated by new evidence we present on the importance of product switching by U.S. manufacturers. Two-thirds of continuing firms change...Read more...

CEP discussion paper

Matching Demand and Supply in a Weightless Economy: Market-Driven Creativity With and Without IPRs

Many cultural products have the same nonrival nature as scientific knowledge. They therefore face identical difficulties in creation and dissemination. One traditional view says market failure is endemic: societies toler...Read more...

CEP discussion paper

Product Standards, Trade Disputes and Protectionism

Trade disputes over national product standards are a growing source of tension in the international trading system. The usual pattern is that a country introduces a new product standard for all sales of a good in its loc...Read more...

CEP discussion paper

Per Capita Income Demand for Variety, and International Trade: Linder Reconsidered

We analyse a monopolistically competitive model of international trade where goods must be consumed in indivisible amounts. The number of varieties that enter a consumer's optimal consumption bundle is increasing in the...Read more...