Educational outcomes have many determinants, but one that most young people can readily control is choosing whether to work while in school. Sixty-nine studies have estimated the effect, but results vary from large negative to positive estimates. We show that the results are systematically driven by context, publication bias, and treatment of endogeneity. Studies ignoring endogeneity suffer from an upward bias, which is almost fully compensated by publication selection in favor of negative estimates. Net of the biases, the literature suggests a negative but economically inconsequential mean effect. The effect is more negative for high-intensity employment and educational outcomes measured as decisions to dropout, but it is positive in Germany. To derive these results we collect 861 previously reported estimates together with 32 variables reflecting estimation context, use recently developed nonlinear techniques to correct for publication bias, and employ Bayesian and frequentist model averaging to assign a pattern to the heterogeneity in the literature.

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Tactile graphics represent an important means to overcome or alleviate the information deficit resulting from the loss of visual perception. The research framework of the paper is focused on a primary probe into the field of application of tactile graphics in the spatial orientation of people with visual impairment in the sense of development of spatial imagination and improvement of independent movement through the use of audiotactile maps. The chosen topic is viewed from the perspective of professionals working with people with visual impairment as well as the clients with visual impairment themselves. Partial results of the study are presented, focusing on the overall attitude of people with visual impairment to tactile graphics and their application potential, which adds to the overall picture of contemporary reality in the field of tactile graphics, with an emphasis on usability in spatial orientation and independent movement. The research has shown the considerable potential of tactile graphics in the development of spatial imagination. In connection with these conclusions, modern 3D maps with auditory elements were designed and will be also presented in the paper.

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