  General Motors or a local business, which one is better to be stimulated in
post-crisis recessions, where government stimulation is meant to overcome
recessions? Due to the budget constraints, it is quite relevant to ask how one
can increase the chance of economic recovery. One of the key elements to answer
this question is to understand metastable features of the economic networks.
Ising model has been suggested for studying such features in the literature. In
the homogenous networks one needs at least a minimum activation, forcing an
Ising network to switch its local equilibria, where such minimum is independent
of the nodes characteristics. In the scale free networks however, when one aims
to push the network to switch its vacuum, she faces the question of which nodes
are better to be stimulated to minimize the cost. In the paper it has been
shown that stimulation of the high degree nodes costs less in general. Despite
regular networks, in the scale free networks, the stimulation cost depends on
the networks features such as assortativity. Though we have utilized the Ising
model to tackle a problem in economics, our analysis shed lights on many other
problems concerning stimulations of socio-economic systems.
