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Como externalidades se distinguen aquellos aspectos ambientales no deseados en los sistemas de producción agropecuarios que en últimas afectan su sostenibilidad; por ejemplo, la pérdida de la agrobiodiversidad por simplificación del germoplasma, la degradación del suelo por uso excesivo de maquinaria y aplicación de fertilizantes sintéticos, la contaminación del agua y el aire por solubilidad de moléculas empleadas en el manejo de arvenses, plagas y enfermedades, entre otros, que limitan su reproducibilidad en el tiempo, reducen los beneficios económicos obtenidos por los produc-tores y, en últimas, ocasionan su deserción del sector. No se trata solo de analizar cómo las prácti...
Essays coathored by Colombian and North American tax experts analyze ways to achieve long-term sustainable fiscal policy and a more efficient tax system.Colombia, once a model of fiscal discipline for other Latin American nations, has seen its fiscal situation deteriorate since the early 1990s. Higher government spending, taxes that did not keep pace with expenditures, and severe recession led to an unsustainable debt-to-GDP ratio of 52 percent in 2002. Short-term tax increases, even coupled with spending reforms, have not restored Colombia to fiscal balance. A Colombian government commission charged with researching more long-term tax and fiscal reforms gave rise to the selected essays incl...
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'NDiaye is a hypnotic storyteller with an unflinching understanding of the rock-bottom reality of most people's life.' New York Times ' One of France's most exciting prose stylists.' The Guardian. Obsessed by her encounters with the mysterious green women, and haunted by the Garonne River, a nameless narrator seeks them out in La Roele, Paris, Marseille, and Ouagadougou. Each encounter reveals different aspects of the women; real or imagined, dead or alive, seductive or suicidal, driving the narrator deeper into her obsession, in this unsettling exploration of identity, memory and paranoia. Self Portrait in Green is the multi-prize winning, Marie NDiaye's brilliant subversion of the memoir. Written in diary entries, with lyrical prose and dreamlike imagery, we start with and return to the river, which mirrors the narrative by posing more questions than it answers.
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