BACKGROUND the present study investigated arsenic content in Iranian, imported rice on sale in Tabriz (fourth most populous city of Iran) market, and assesses daily arsenic intake from rice. METHODS A total of 33 locally available rice samples from different brands were collected and then wet and dry ashing digestion procedures were compared for decomposition of them before analyzing by graph...

The non-tradability of human capital is often cited for the failure of traditional asset pricing theory to explain agents’ portfolio holdings. In this paper we argue that the opposite might be true — traditional models might not be able to explain agent portfolio holdings because they do not explicitly account for the fact that human capital does trade (in the form of labor contracts). We deriv...

We study the behavior of firms in an imperfectly competitive environment in which firms influence the evolution of the stock of capital equipment. Our model enables us, using analytical characterizations, to show the effect of key ingredients of dynamic competition on firm strategies and industry dynamics in addition to the usual static interaction. These effects are the static market externali...

This paper analyzes the short-term effects of foreign capital flows on aggregate demand in Mexico: their magnitude, transmission channels, and the possible influence of the country’s choice of exchange rate regime. The study is motivated by the introduction of a floating system in December 1994, in a context of renewed volatility of international capital flows. During the band period, in the ea...

Recent empirical studies have shown an increasing co-movement between fund and market liquidity, which is driven by common factors such as monetary shocks. Modeling this comovement becomes desirable to evaluate policies relating to liquidity and financial instability. This paper establishes a monetary model with capital to explain the dynamic interactions between funding and market liquidity in...