This paper investigates the citation impact of three large geographical areas -- the U.S., the European Union (EU), and the rest of the world (RW) -- at different aggregation levels. The difficulty is that 42% of the 3.6 million articles in our Thomson Scientific dataset are assigned to several...

This paper uses high- and low-impact citation indicators for the evaluation of the citation performance of research units at different aggregate levels. To solve the problem of the assignment of individual articles to multiple sub-fields, it follows a multiplicative strategy according to which...

This paper studies evidence from Thomson Scientific about the citation process of 3.7 million articles published in the period 1998-2002 in 219 Web of Science categories, or sub-fields. Reference and citation distributions have very different characteristics across sub-fields. However, when...

In many datasets, articles are classified into sub-fields through the journals in which they have been published. The problem is that many journals are assigned to a single sub-field, but many others are assigned to several sub-fields. This paper discusses a multiplicative and a fractional...

This paper evaluates the European Paradox according to which Europe plays a leading world role in terms of scientific excellence, measured in terms of the number of publications, but lacks the entrepreneurial capacity of the U.S. to transform this excellent performance into innovation, growth,...

I study how savers allocate funds between boundedly rational firms which follow simple pricing rules. Firms need cash to pay their inputs in advance, and savers-shareholders allocate cash between them so as to maximize their rate of return. When the rate of return on each firm is observed, there...

Using data from the European Social Survey on most European countries, we look at the relationship between ethnic identity and employment prospects for immigrants from non-European countries. We find that a strong attachment to religion is associated with a lower probability of being employed....

The Droit de Suite, known in the UK as Artists’ Resale Rights, provides an artist with the inalienable right to receive a royalty based on the resale price of an original work of art. This paper provides an empirical analysis of actual changes in the UK auction market for art that is subject...

Concert tickets can either be sold at a single price or at multiple prices corresponding to different seating categories. We study the relationship between price discrimination and revenue by examining variations in the number of seating categories across concert, tour, artist, location, and...

This paper investigates the reading of fiction books by 15-year-olds in 18 OECD countries. It appears that girls read fiction books more often than boys, whereas boys read comic books more often than girls. The intensity by which children read fiction books is influenced by parental education,...