This study intended to investigate the relationship between the number of correct lexical collocations and expressiveness in a writing task. 45 Iranian undergraduate EFL learners of an English language institute in Tehran who had passed the upper-intermediate level were recruited to sit for a...

I consider an economy with fossil fuel and renewable energy and energy storage, and search for the conditions that lead to welfare improvements when energy is stored. I then solve for the optimal decision rule and analyze the long-run tendencies of the economy-energy variables. The findings are...