We present a methodology for characterization and an approach for computing the solutions of fuzzy linear systems with LR fuzzy variables. As solutions, notions of exact and approximate solutions are considered. We transform the fuzzy linear system into a corresponding linear crisp system and a constrained least squares problem. If the corresponding crisp system is incompatible, then the fuzzy ...

By using the Flexible Least Squares (FLS) method, this study visibly shows the time variation paths of risk loadings for industrial stocks. Significant structural changes in time variation paths of risk loadings are verified by the OLS results and largely consistent with major economic and political events in the U.S. history.

in this paper, stabilization conditions and controller design for a class of nonlinear systems are proposed. the proposed method is based on the nonlinear feedback, quadratic lyapunov function and heuristic slack matrices definition. these slack matrices in null products are derived using the properties of the system dynamics. based on the lyapunov stability theorem and sum of squares (sos) dec...

It is a piece of idle senthentality that truth, merely as truth, has any inherent power denied to error, or prevailing against the dungeon and the stake. Men are not more zealous for truth than they often are for error, and a sufficient application oflegal or even of social penalties will generally succeed in stopping the propagation of either. The real advantage which truth has, consists in th...

This paper develops a theory of the interaction between appropriative conflict and economic growth. Appropriative conflict, as measured by the diversion of resources, is viewed as the cost of securing effective property rights. We identify conditions under which conflict rises or falls as the rate of economic growth improves. The main implication of the analysis is that if the quality of proper...

The aim of this research is to examine the role of state ownership in corporate governance and firm performance. We employed ordinary least squares and two-stage least squares regressions to analyze the effects of state ownership on firm performance. We go beyond existing research on state ownership by carefully disentangle investment objectives of state-controlled financial institutions. Such ...

we present a methodology for characterization and an approach for computing the solutions of fuzzy linear systems with lr fuzzy variables. as solutions, notions of exact and approximate solutions are considered. we transform the fuzzy linear system into a corresponding linear crisp system and a constrained least squares problem. if the corresponding crisp system is incompatible, then the fuzzy ...

Though political theorists have emphasized the importance of political discussion in non-political spaces, past study of online political discussion has focused on primarily political websites. Using a random sample from Blogger.com, we find that 25% of all political posts are from blogs that post about politics less than 20% of the time, because the vast majority of blogs post about politics s...