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Keyword: aggregation;

9 results found.

Public Economics Programme Discussion Paper

The Tyranny Puzzle in Welfare Economics: An empirical investigation

Frank A Cowell, Marc Fleurbaey and Bertil Tungodden

We address a puzzle in welfare economics – the possibility that rational people may be simultaneously against two apparently con‡icting forms of “tyranny.” In fact the two types of tyranny can be reconciled but at the po...Read more...

May 2010

Political Economy and Public Policy Paper

Group deliberation and the transformation of judgments: an impossibility result

Christian List

While a large social-choice-theoretic literature discusses the aggregation of individual judgments into collective ones, there is relatively little formal work on the transformation of individual judgments in group delib...Read more...

March 2007

Political Economy and Public Policy Paper

Strategy-proof judgment aggregation

Franz Dietrich and Christian List

In the theory of judgment aggregation on logically connected propositions, an important question remains open: Which aggregation rules are manipulable and which are strategy-proof? We define manipulability and strategy-p...Read more...

August 2005

Econometrics Paper

Contemporaneous Aggregation of GARCH Processes

Paolo Zaffaroni

We study the impact of large cross-sections of contemporaneous aggregation of GARCH processes and of dynamic GARCH factor models. The results crucially depend on the shape of the cross-sectional distribution of the GARCH...Read more...

January 2000

Econometrics Paper

Variance-Type Estimation of Long Memory - (Now published in 'Stochastic Processes and their Applications', 29 (1999), pp.1-24.)

Liudas Giraitis and Peter M Robinson

The aggregation procedure when a sample of length N is divided into blocks of length m = o(N), m ? ? and observations in each block are replaced by their sample mean, is widely used in statistical inference. Taqqu, Tever...Read more...

October 1998

Econometrics Paper

Aggregation of Simple Linear Dynamics: Exact Asymptotic Results

Marco Lippi and Paolo Zaffaroni

his paper deal with aggregation of AR(1) micro variables driven by a common and idiosyncratic shock with random coefficients. We provide a rigorous analysis, based on results on sums of r.v.'s with a possibly finite firs...Read more...

April 1998

Econometrics Paper

Beta Convergence

C Michelacci and Paolo Zaffaroni

Unit root in output, an exceptional 2% rate of convergence, and no change in the underlying dynamics of output seems to be three stylized facts that can not go together. This paper extends the Solow-Swan growth model all...Read more...

July 1997

Econometrics Paper

Messy Time Series: A Unified Approach - (Now published in 'Advances in Econometrics', 13 (1998)pp.103-143.)

Andrew C Harvey, Siem Jan Koopman and J Penzer

Many series are subject to data irregularities such as missing values, outliers, structural breaks and irregular spacing. Data can also be messy, and hence difficult to handle by standard procedures, when they are intrin...Read more...

March 1997

DARP Paper

Why not to aggregate up: the influence of aggregation on the ordering of distributions

Stephen Howes

Researchers in many fields of economics often compare distributions using some criterion or another of inequality, poverty or welfare. It is standard practice to base such comparative analysis on aggregated data. But wil...Read more...

October 1993