The program-length commercial: A study of the effects of television/toy tie-ins on imaginative play

A study was done examining the impact of toy-based television programs and program-related toys on children. One hundred and ten first- and second-grade children participated in an experiment which focused on imaginative play. The results indicated that, in general, the combination of watching a toy-based cartoon, followed by playing with a set of cartoon-related toys, produced stories that were more imitative of the immediately preceding experience, whereas watching the cartoon alone or playing with the cartoon-related toys alone led to more imaginative productions from other sources. However, for certain aspects of imagination at a more advanced cognitive level, the cartoon, especially when combined with cartoon-related toys, actually stimulated the imaginative processes of the younger children, thus serving as a learning tool at a transitional stage of cognitive development.     

Efficient communication in the electronic mail game

The literature on the electronic mail game shows that players' mutual expectations may lock them into requiring an inefficiently large number of confirmations and confirmations of confirmations from one another. This paper shows that this result hinges on the assumption that, with the exception of the first message, each player can only send a message when receiving an immediately preceding message. We show that, once this assumption is lifted, equilibria involving confirmations of confirmations no longer pass standard refinements of the Nash equilibrium, and are no longer evolutionary stable.     

Analysts' forecast error: a robust prediction model and its short‐term trading profitability

This paper contributes to the empirical evidence on the investment horizon salient to trading based on predicting the error in analysts' earnings forecasts. An econometric framework is proposed that accommodates the stylized fact of extreme values in the forecast error series. We find that between 1998 and 2010, the strategy of taking a long (short) position in stocks with the most pessimistic (optimistic) I/B/E/S forecast has an annual risk‐adjusted return of 16.56 per cent before transaction costs. The robust method used to predict this pessimism (optimism) and the one‐week investment horizon are the key drivers of the strategy's profitability.     

Exploring modern bank penetration: Evidence from early twentieth-century Netherlands

We analyse the estate composition of the richest 30 per cent of people who died in the Netherlands in 1921 to find that households used a broad range of institutions to meet their financial demands. Goods and services were either paid in cash or settled periodically with suppliers. Despite the strong growth of commercial banking in the previous decades, households still made extensive use of peer-to-peer loans, with or without the added security of notarial contracts. Banks only possessed a competitive edge in savings accounts for small surpluses and current accounts, the latter used most frequently by business owners born after 1870. Distance to the nearest bank office did not matter for these people, but wealthy urbanites were more inclined to use banks than their counterparts in the countryside.     

Analysis of vent area estimation methods for non-nomograph gases

The approach discussed in this paper is an attempt to allow a broader application of a loss prevention technique and to insure efficacy of the technique.     

This is what you came for? University–industry collaborations and follow-on inventions by the firm

The positive impact of university–industry collaborations on firms' innovative performance is well recognized. However, to date, the existing heterogeneity within university–industry collaboration processes and the sources of value creation underlying the resulting inventions are left underexplored. As a result, our understanding as to why some of the joint inventions resulting from such collaborations turn out to present a more fertile source of follow-on developments and value for the collaborating firm than others is limited. The present paper sheds light on this question through the application of a knowledge recombination perspective. Hence, we open the black box of innovation and put a spotlight on the knowledge components that make up the joint inventions resulting from university–industry collaborations. We evaluate how the nature—scientific versus technological—and origins—internal versus external to the collaborating partners—of these knowledge components relate to the inventive impact of the partners' joint invention. Examining a sample of 9102 USPTO co-patents, joint inventions created through university–industry collaborations are shown to be most fertile as a source of firm follow-on inventions when they are the result of a recombination process that includes technological knowledge components stemming from both collaborating partners. This effect is most pronounced when the partners' technological knowledge contributions are moderately similar. In contrast, when the joint technology development takes place in a technology domain that is novel to the firm, the resulting joint inventions are most fertile as a source of firm follow-on inventions when the university contributes through the input of technological knowledge components situated in exactly this technology domain that is novel to the firm. Remarkably, no evidence for such direct effects is found regarding the partners' scientific contributions. Together, these findings provide important insights for firms who intend to spur their internal technology development through collaboration with a university partner.