A note on cointegration and control

Article Abstract:

The cointegrating relationship among the dependent variable, the target series, and the policy series or control variable, is just a linear combination of two stationary relationships. If the government utilizes the correct plant equation, the error correction model does not rely on the parameters in the equation a(sub t) = beta x y(sub t) + gamma x a(sub t-1) + e(sub at). However, if the plant equation is wrong, the dependence appears in the adjustment coefficient of the control variable.

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Matchings, covers, and Jacobian matrices

Article Abstract:

An operational approach was developed to address problems that usually arise when building large and sparse systems of equations that do not immediately verify a zerofree diagonal of the Jacobian matrix. The graph-theoretic approach involves seeking a maximum cardinality matching in bipartite graph. Model builders are usually challenged when a normalization is rare. Such a case is analyzed by using properties that connect covers to matchings in bipartite graphs.

Research, Matrices, Matrices (Mathematics)

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The value of information: the case of signal-dependent opportunity sets

Article Abstract:

The value of information in different economic models has shown to demonstrate a vital role in the decision-making process of individual agents. Blackwell introduced various definitions of the significant concept that one information system is more informative than the other. Blackwell has also considered a generalization of the problem in which the decision-maker selects an action after observing a signal corresponding to the state of nature.

Information Analysis NEC, Decision-making, Decision making, Analysis, Information technology, Information theory, Information theory in economics

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