NEW YORK, Sept 19 (Reuters) - The marginal cost of nearly 5 percent of world oil supplies has risen to $70 per barrel, which is pushing the long-term price structure of the oil market higher, Goldman ...

The law of diminishing returns is a concept of economics that every entrepreneur should understand. Also known as the law of diminishing marginal returns, this law helps entrepreneurs and economists ...

Costs are a critical variable to consider when plotting business strategy. After all, if you can't recover the expenses required to create your product through revenue and profit, then the business ...

OIL and gas operators are worried over what they call marginal fields poor contribution to the national output, which hovers between 2.1 million and 2.4 million barrels per day. At a workshop on ...