a r t i c l e i n f o This paper examines the relationship between option trading activity and stock market volatility. Although the option market is uniquely suited for trading on volatility information, there is little analysis on how trading activity in this market is linked to stock price volatility. The bulk of the discussion tends to focus on whether trading activity in the stock market i...

background: pre-operative informed consent is an important aspect of surgery, yet there has been no formal training regarding it in pakistan. this study was done to assess the preoperative informed consent practice. methods: after taking informed permission, a questionnaire was filled in during an interview with 350 patients, who have undergone elective surgical procedures under routine practic...

We study the effect(s) of volatility on share trading in dark pools by exploiting exogenous shock Covid-19 pandemic financial markets and regulatory restrictions trading. find that high levels lit exchanges is linked to an economically significant loss market exchanges. In line with theory, appears be driven informed traders’ migration from during periods. The quality implications dynamics are ...

This paper presents a model in which a durable goods monopolist sells a product to two buyers. Each buyer is privately informed about his own valuation. Thus all players are imperfectly informed about market demand. We study the monopolist’s pricing behavior as players’ uncertainty regarding demand vanishes in the limit. In the limit, players are perfectly informed about the downward-sloping de...

We study the manipulation of stock market prices by fund managers in the presence of potential future fund flows. As investors will make further investment as long as the asset price is not fully revealing, the informed manager has incentives to prevent the asset value to be revealed too early, in order to maximise the size of fund flows. Hence in the early trading round, the informed manager a...

We use Hasbrouck (1991)'s vector autoregressive model for prices and trades to empirically test and assess the role played by the waiting time between consecutive transactions in the process of price formation. We find that as the time duration between transactions decreases, the price impact of trades, the speed of price adjustment to trade related information, and the positive autocorrelation...

We develop a new methodology to estimate the impact of financial transaction tax (FTT) on market outcomes. In our sequential trading model, there are price-elastic noise and informed traders. model through maximum likelihood for sample 60 NYSE stocks in 2017. quantify effect introducing an FTT given parameter estimates. An increases proportion trading, improves information aggregation, but lowe...