Publications des institutions partenaires

S'abonner aux flux infonet economy   1161 - 1180 of 4030

Fast methods for large-scale non-elliptical portfolio optimization

Simple, fast methods for modeling the portfolio distribution corresponding to a non-elliptical, leptokurtic, asymmetric, and conditionally heteroskedastic set of asset returns are entertained. Portfolio optimization via simulation is demonstrated, and its benefits are discussed. An augmented mixture of normals model is shown to be superior to both standard (no short selling)...

Full Text

English / 01/09/2014

An equilibrium analysis of the simultaneous ascending auction

We provide a Bayes–Nash equilibrium analysis of the simultaneous ascending auction (SAA) when local bidders interested in a single item compete against global bidders interested in aggregating many items. We first assume that each local bidder values only a specific item, e.g. the license for the region where it has monopoly power, and that global bidders' valuation functions...

Full Text

English / 01/09/2014

A practical two-step method for testing moment inequalities

This paper considers the problem of testing a finite number of moment inequalities. We propose a two-step approach. In the first step, a confidence region for the moments is constructed. In the second step, this set is used to provide information about which moments are “negative.” A Bonferonni-type correction is used to account for the fact that with some probability the moments may...

Full Text

English / 01/09/2014

Nestedness in networks: a theoretical model and some applications

We develop a dynamic network formation model that can explain the observed nestedness in real-world networks. Links are formed on the basis of agents' centrality and have an exponentially distributed life time. We use stochastic stability to identify the networks to which the network formation process converges and find that they are nested split graphs. We completely determine...

Full Text

English / 01/09/2014

Are subjective distributions in inflation expectations symmetric?

We conducted an anonymous survey in December 2013 asking around 200 economists worldwide to provide an interval (a to b) of average inflation in the US expected "over the next two years". The respondents were also instructed to give a probability of inflation being higher or lower than the mid-interval (a+b)/2. The aggregate distribution of inflation expectations we obtain...

Full Text

English / 01/09/2014

Analyzing educational achievement differences between second-generation immigrants: comparing Germany and German-speaking Switzerland

In this study, I provide evidence that the educational achievement of second-generation immigrants in German-speaking Switzerland is greater than in Germany. The impact of the first-generation immigrants’ destination decision on their offspring’s educational achievement seems to be much more important than has been recognized by the existing literature. I identify the test score gap...

Full Text

English / 01/09/2014

Communication & competition

Charness and Dufwenberg (Am. Econ. Rev. 101(4):1211–1237, 2011) have recently demonstrated that cheap-talk communication raises efficiency in bilateral contracting situations with adverse selection. We replicate their main finding and extend their design to include competition between agents. We find that communication and competition act as “substitutes:” communication raises...

Full Text

English / 01/09/2014

Surprise beyond prediction error

Surprise drives learning. Various neural “prediction error” signals are believed to underpin surprise-based reinforcement learning. Here, we report a surprise signal that reflects reinforcement learning but is neither un/signed reward prediction error (RPE) nor un/signed state prediction error (SPE). To exclude these alternatives, we measured surprise responses in the absence of RPE...

Full Text

English / 01/09/2014

Monitoring public procurement: evidence from a regression discontinuity design in Chile

The government is the biggest buyer in the economy of most countries. At the same time, the public procurement process if often thought to be fraught with corruption and malpractice. However, there is little evidence regarding the impact of audits aimed at reducing such malpractice. This paper investigates the effect of being audited on public entities' subsequent procurement...

Full Text

English / 01/09/2014

Short- and long-term effects of unemployment on fertility

Scholars have been examining the relationship between fertility and unemployment for more than a century. Most studies find that fertility falls with unemployment in the short run, but it is not known whether these negative effects persist, because women simply may postpone childbearing to better economic times. Using more than 140 million US birth records for the period 1975–2010,...

Full Text

English / 01/09/2014

Unique Equilibrium in Contests with a Continuum of Types

It is shown that rent-seeking contests with continuous and independent type distributions possess a unique pure-strategy Nash equilibrium.

Full Text

English / 23/08/2014

The executive turnover risk premium

CEO compensation has increased substantially over the past 15 years, but so has forced turnover. Motivated by this observation, we investigate whether part of the development of CEO pay can be explained by a premium which compensates CEOs for increased job risk. We find that for the CEOs of the largest US corporations, a one percentage point increase in turnover risk is, on average,...

Full Text

English / 01/08/2014

Employment polarization and the role of the apprenticeship system

This paper studies the effects of the apprenticeship system on innovation and labor market polarization. A stylized model with two key features is developed: (1) apprentices are more productive due to industry-specific training, but (2) from the firm’s perspective, when training apprentices, technological innovation is costly since training becomes obsolete. Thus, apprentices...

Full Text

English / 01/08/2014

China’s great convergence and beyond

A recent wave of economic research has studied the transformation of China from a poor country in the 1970s to a middle-income economy today. Based on this literature, we discuss the factors driving China’s development process. We provide a historical account of China’s rise, fall, and resurgence. We then discuss the stylized facts associated with China’s growth process and review a...

Full Text

English / 01/08/2014

The neurobiology of rewards and values in social decision making

How does our brain choose the best course of action? Choices between material goods are thought to be steered by neural value signals that encode the rewarding properties of the choice options. Social decisions, by contrast, are traditionally thought to rely on neural representations of the self and others. However, recent studies show that many types of social decisions may also...

Full Text

English / 01/08/2014

Handing out guns at a knife fight: behavioral limitations of subgame-perfect implementation

The assumption that payoff-relevant information is observable but not verifiable is important for many core results in contract, organizational and institutional economics. However, subgame-perfect implementation (SPI) mechanisms - which are based on off-equilibrium arbitration clauses that impose fines for lying and the inappropriate use of arbitration - can be used to render payoff...

Full Text

English / 01/08/2014

Growing (with capital controls) like China

This paper explores the effects of capital controls and policies regulating interest rates and the exchange rate in a model of economic transition applied to China. It builds on Song, Storesletten, and Zilibotti (2011) who construct a growth model consistent with salient features of the recent Chinese growth experience: high output growth, sustained returns on capital investment,...

Full Text

English / 01/08/2014

Pages

Le portail de l'information économique suisse

© 2016 Infonet Economy