We study model selection strategies based on penalized empirical loss minimization. We point out a tight relationship between error estimation and data-based complexity penalization: any good error estimate may be converted into a data-based penalty function and the performance of the estimate...

This article brings new inputs to debate outsourcing in Brazil, using a new methodology based on administrative records. With this methodology, it is possible to identify 4.02 million outsourced workers, corresponding to 11.7% of total employees in the urban private sector. Moreover, with this...

This article brings new inputs to debate outsourcing in Brazil, using a new methodology based on administrative records. With this methodology, it is possible to identify 4.02 million outsourced workers, corresponding to 11.7% of total employees in the urban private sector. Moreover, with this...

The specialized libraries of the federal public administration provide services for the keeping and preservation of institutional memory, as well as meeting the specialized information needs of their maintainers, providing informational subsidies for the decision-making and public policy-making...

The specialized libraries of the federal public administration provide services for the keeping and preservation of institutional memory, as well as meeting the specialized information needs of their maintainers, providing informational subsidies for the decision-making and public policy-making...

This study aims to analyze the empirical results of marketing margins and price transmission of some agricultural products in trade fairs in the state of Alagoas, Brazil. Two agricultural products were used in this study: the curly lettuce and cassava (mandioca). These were sought to...

The problem of piracy has always existed since the beginning of the creation of computers, namely using rudimentary methods. With the emergence and development of Internet and computers more powerful, more sophisticated ways were emerging and less expensive to pirate. Today hacking/software...

The forecasting of government revenues is extremely important for an adequate budget execution, since a good accuracy in the estimation allows the stipulation of an expenditure level that meets the demands of the population. Using data released by the National Council of Treasury Policy, the...

This paper applies multilevel models to Brazilian's tertiary education assessment data in order to test whether some of the factors pointed out by the literature as relevant to achievement are associated with the performance of last year engineering students in 2011. Brazil is the only country...

We know from experience that weak economic growth increases the unemployment rate. In 1962 Okun proposed to measure potential output in terms of unemployment gap. From this relation a direct link between increase in unemployment and output growth was deduced, known as the Okun Law. This Law is...