Multivariate Tobit models estimated using German cross–sectional data are applied to test if strategic complementarities exist between expenditures in four different types of ICT–components. If two ICT–components are complements, they are correlated (provided that agents act rationally). My results are that significant correlations between all four types of ICT–expenditures indeed exist that ca...

HepG2 cells expressing CYP2E1 (E47 cells) are more susceptible to toxicity by arachidonic acid (AA) or after glutathione depletion with an inhibitor of glutamate-cysteine ligase, L-buthionine-(S,R)-sulfoximine (BSO), compared with control HepG2 cells (C34 cells). The ability of nitric oxide (NO) to protect against CYP2E1-dependent toxicity has not been evaluated. We therefore studied the abilit...

We propose a general framework for analyzing structural limited dependent variable models where an endogenous regressor is also limited in range. A copula-based modeling of structural joint distributions permits us to implement a full information maximum likelihood estimation of parameters. We apply this modeling strategy to the March 1992 and 2002 CPS data for estimating the average partial ef...

We propose a methodology for constructing confidence regions with partially identified models of general form. The region is obtained by inverting a test of internal consistency of the econometric structure. We develop a dilation bootstrap methodology to deal with sampling uncertainty without reference to the hypothesized economic structure, and apply a duality principle to reduce the dimension...

This paper deals with generalized semi-infinite optimization problems where the (infinite) index set of inequality constraints depends on the state variables and all involved functions are twice continuously differentiable. Necessary and sufficient second order optimality conditions for such problems are derived under assumptions which imply that the corresponding optimal value function is seco...

t he objective of this study is using the markov switching vector autoregressive method and regime dependent impulse response functions to measure the pass-through of world food prices to consumer price index in iran from 1990 to 2013. with respect to information criteria and the log-likelihood ratio statistic, msia(2)-var(1) model has a better fit to data than other models. the magnitude of th...

The retina is one of the vertebrate tissues with the highest content in polyunsaturated fatty acids (PUFA). A large proportion of retinal phospholipids, especially those found in photoreceptor membranes, are dipolyunsaturated molecular species. Among them, dipolyunsaturated phosphatidylcholine (PC) molecular species are known to contain very-long-chain polyunsaturated fatty acids (VLC-PUFA) fro...

Using monthly balance-sheet data of all major German credit banks, we analyze deposit withdrawals and bank failures in the German banking and currency crisis of 1931. We Þnd that deposit withdrawals were driven by the run on the currency, but were also related to banks’ liquidity positions; that branch banks were no more stable than unit banks; and that large banks were privileged, being bailed...