The choice of a formula for the antigen is limited by four considerations: (1) The anticomplementary action of the antigen. (2) The complement-fixing properties of the antigen. (3) The occurrence of floccules when the antigen is made in saline suspensions. (4) The unit strength of the formula to be employed. It has already been shown (Price, 1953a, b) that as far as the anticomplementary proper...

Price uncertainties are increasing as diverse buyers and sellers coming into the fuel minerals market. There supplyside due to resource depletion, supply chain problems, prolonged wars conflicts. Uncertainties enhance risk. Moreover, standard trading practices in oil gas industries like long-term agreements with rigid price–fixing mechanisms being challenged by short-term contracts where price ...

mation bound to almost all commercial goods or services. Familiar terms such as price discrimination, price wars, price fixing, consumer price indices, price rigidity, shadow prices, price tags, and so on signify the key role of prices in society and how markets can fail if the price-setting mechanism falters. At the level of the firm, pricing is the key means by which rents are appropriated: I...