Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Vikki Velasquez is a researcher and writer ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Option margin is the collateral (cash or securities) an investor must deposit before writing or selling options ...

In technical terms, leverage is the ratio between the amount of money you have in your account and the total size of positions the broker allows you to take. You’re using leverage every time you enter ...

The profit margins for jewelry makers and sellers can vary widely, particularly given the numerous categories within this industry. Fine jewelers who either make their own products or source their ...

Abstract: Customer requirements are constantly evolving, which will cause high change risks and redesign costs for the products. To control the change risks toward evolving customer requirements, ...

Near steady cash cattle prices combined with slightly higher feed costs to wipe out the narrow profit margins cattle feeders found the week before last. The result was an average loss of $1.75 per ...

In this paper, we argue that recent trends in party seat margins and election vote margins result from structural changes in the nature of US political competition. We assemble a comprehensive ...

Support Vector Machines can be used on problem cases where we have an $n$-dimensional feature space. For teaching purposes, however, we use a 2-dimensional feature ...

1 Faculty of Health Science, School of Health Care Science, Nursing Science Department, University of Limpopo, Polokwane, South Africa 2 Faculty of Health Science, School of Medicine, University of ...