Data is a commodity. Recent research has considered the mathematical problem of setting prices for different queries over data. Ideal pricing functions need to be flexible – defined for arbitrary queries (select-project-join, aggregate, random sample, and noisy privacy-preserving queries). They should be fine-grained – a consumer should not be required to buy the entire database to get answers ...

This paper uses a nonlinear arbitrage pricing model, a conditional linear model, and an unconditional linear model to price international equities, bonds, and forward currency contracts. Unlike linear models, the nonlinear arbitrage pricing model requires no restrictions on the payoff space, allowing it to price payoffs of options, forward contracts and other derivative securities. Only the non...

Inception of Markowitz’s modern portfolio theory has also fuelled the development of asset pricing models for empirical finance, ranging from linear single-factor models like the capital asset pricing model to fairly complex multi-factor models such as the arbitrage pricing theory (APT). It is well-known in the literature of finance that APT could be used for modelling the underlying security r...

The process of predicting the stock return is considered main challenge confronting financial analyst and investment decision-maker in particular. objective study aims at testing ability both CAPM model APT theory return. investigated a sample 10 banks listed Iraq Stock Exchange for period (2012-2021). A variety appropriate statistical means tools were employed. results many conclusions includi...

Data as a commodity has always been purchased and sold. Recently, web services that are data marketplaces have emerged that match data buyers with data sellers. So far there are no guidelines how to price queries against a database. We consider the recently proposed query-based pricing framework of Koutris et al. [13] and ask the question of computing optimal input prices in this framework by f...

The arbitrage pricing principle has been used to derive price relations like the Black-Scholes formula and Heath-Jarrow-Morton models in the context of frictionless markets and unconstrained trading. These relations may or may not be good approximations to reality. Even if, they are certainly not enforced by real world arbitrage because of transaction costs and trading constraints. Recently, re...