This Test Guideline is designed to assess the toxicity of substances to freshwater aquatic plants of the genus Lemna (duckweed). Exponentially growing plant cultures of the genus Lemna (Lemna gibba and Lemna minor usually) are allowed to grow as monocultures in, at least, five concentrations of...

The current monetary policy framework in several Latin American countries, combining inflation targeting and a floating exchange-rate regime, has contributed to disinflation by anchoring expectations around low, stable levels. This paper uses co-integration analysis to estimate simultaneously a...

This Test Guideline is designed to assess the effects of prolonged exposure to chemicals on the growth of juvenile fish. Juvenile fish in exponential growth phase are placed, after being weighed, in test chambers and are normally exposed to five sublethal concentrations of the test substance...

The purpose of this test is to determine the effects of a substance on the growth of freshwater microalgae and/or cyanobacteria. Exponentially growing test organisms are exposed to the test substance in batch cultures over a period of normally 72 hours. The system response is the reduction of...

At OECD Forum 2001, some 1,500 representatives of civil society, government, business and labour came together to discuss the critical policy challenges of sustainable development and the new economy. Svend Auken, Danish Minister for the Environment and Energy, captured the spirit of the Forum...

How is innovation transforming tourism business models? By tackling the subject of innovation, this report touches upon an important dimension of tourism economics rarely examined at the international level. It provides information about the dynamics and characteristics of innovation in tourism,...

Presents the full data set underlying PISA 2006 Volume 1: Analysis. Includes data on student performance in science, student engagement in science, quality and equity in schools, school and system characteristics, and student performance in reading and mathematics.