Vol 19, No 39 (2016)

This paper tries to estimate the value of the green zones of the Antonio Nariño residential estate in Bogota, Colombia using the hedonistic price method. Using the information found at the Bogota Multipurpose Survey for 2011 and information on the density of green zones per inhabitant, a hedonistic price function is built using a minimum square regression by a constant elasticity model (Log-Linear or Log-Log). Which shows that if there is an increase of 1 square meter of green zones per inhabitant in any district of the city, the average housing price would increase on average a 2,24% at the market for apartments and houses at residential estates. This means that the green zones of the Antonio Nariño Urban Center equal $102.776.833.449 Colombian pesos of 2011

This article analyses temporary labor trajectory in the Colombian manufacturing industry. The source of information used for this purpose is the National Statistics Department Manufacturing Survey. For this analysis, the chronological series for the main manufacturing employment variables during the time period 2000–2013 where used. It was found that since the 90s, the use of temporary employment has grown at the expense of permanent labor, representing in 2014 41.4% of total employment. Despite the growth of indirect temporal employment, direct hiring represents a larger part of the pie. In the other had, men employment
exceeded women employment in all categories over a 60%. Direct women employment, despite its fast drop during the period of analysis was 5 points over indirect employment in 2013.

The purpose of this article is to analyze the indicators related with labor incomes and working times under the International Labor Organization methodological proposal, within their decent labor program. The data was obtained from the Great Household Integrated Survey done by the National Statistics Administrative Department corresponding to 2012–2014. The measurement was done both for Antioquia as well as for the municipalities belonging to the Metropolitan Area of the Aburra Valley. The results must be understood as a base line and these show that labor income is not allowing a group of working individuals to step
outside the poverty line. It also shows that part of this population works more hours than permitted.

This article analyses mobility in Bogota. It studies the generation of negative externalities of Collective Public Transportation towards other means of substitute alternative transportation such as the Transmilenio Transportation System. Using the 2011 mobility survey, origin-destination matrixes are built while exploring the efficiency in displacements by travel times within the city in function to distances and means of transport. Parting from econometric estimations It is concluded that the duration of displacements is affected by the negatively covered distances and the mean of transportation (Collective Public Transportation and / or Transmilenio) indistinctively.

The main objective of this article is to present arguments that justify the incorporation of financial incentives for solving the scarcity of organs needed for transplants. In order to identify the arguments that justify the organ market proposal, a conventional microeconomics analysis and the simplified wellbeing analysis are used. It is concluded that the financial incentives could potentially increase the supply of organs and amplify the range of options for individuals.

The objective of this article is to compare organizational and institutional change in two business incubators, one in Medellin, Colombia and another one in Barcelona, Spain; The influence of internal and external factors are both considered as well as the existence, incorporation and institutionalization of public policies as well as business and entrepreneurial programs. A qualitative case study strategy was used for developing the methodological aspect, which supported the documental analysis for the semistructured
interview. The main results show that the Colombian incubator changed its business name because of financial self sustainability needs and lack of coordination and articulation from the National
Science, Technology and Innovation System, while the incubator from Spain consolidated its business name broadening its organizational capacities thanks to the favorable opportunities offered by National Science, Technology and Innovation system.

The main objective of this article is to identify marketing strategies used by street sellers in the city of Medellin. In order to reach this objective a structured observation was required for exchange practices,
their relation with the popular economy and the difference between micro business and informality. The main finding of this research was that the intuitive thinking of the street sellers opens space to marketing
practices. And even though this entrepreneurs don´t count with academic education, their intuition allows them to develop actions that become a marketing process