For portfolio choice problems with proportional transaction costs, we discuss whether or not there exists a shadow price, i.e., a least favorable frictionless market extension leading to the same optimal strategy and utility. By means of an explicit counter-example, we show that shadow prices may fail to exist even in seemingly perfectly benign situations, i.e., for a log-investor trading in an...

Nowadays one of the most important issues in our economy, both from economic and political view is the link between monetary policy and business cycle fluctuations. Amongst the shocks related to the supply side, the shock of oil price is the important factor that has affected the world economy since the 1970s. This paper examines the effects of monetary policy and oil price shocks on the busine...

Auctions are a popular way to raise money for charities, but relatively little is known, either theoretically or empirically, about the properties of charity auctions. We conduct field experiments to see which sealed bid format, first price, second price or all-pay, raises the most money. Our experiment suggests that both the all-pay and second price formats are dominated by the first price auc...

This paper presents an economic evaluation of gas to liquids (GTL) project using “South-Pars” gas field of Iran based on the latest actual performing GTL projects. Iran has the world’s largest reserves of natural gas and can satisfy the projected long-term market demand of GTL products which have lower pollution and higher quality than refinery products. The results of cost-benefit analysis sho...

and Applied Analysis 3 Table 1: Comparison between the papers discussing integrated inventory model with a trade credit. Author s Demand rate Production rate Production/purchase cost Freight rate Wholesale price Abad and Jaggi 39 Retail price sensitive Constant Constant — Constant Jaber and Osman 40 Constant — — — Constant Yang and Wee 41 Retail price sensitive — Constant — Constant Sheen and T...

This study analyzes the influence of fundamental factors (inflation, exchange rates, ROA, ROE, and BOPO) on LQ 45 Banking Stock Price. The research subjects are banks listed in for quarterly period 2015-2019, using Panel Data Regression. analysis model is Common Effect Model (CEM). uses 2 models where first tests all variables except second ROA. results showed that inflation rate significantly ...