Showing 1 - 10 of 19
In all empirical-network studies, the observed properties of economic networks are informative only if compared with a well-defined null model that can quantitatively predict the behavior of such properties in constrained graphs. However, predictions of the available null-model methods can be...
Persistent link: https://www.econbiz.de/10010328406
The identification of a VAR requires differentiating between correlation and causation. This paper presents a method to deal with this problem. Graphical models, which provide a rigorous language to analyze the statistical and logical properties of causal relations, associate a particular set of...
Persistent link: https://www.econbiz.de/10010328494
In this paper, we present an evolutionary model of industry dynamics yielding endogenous business cycles with 'Keynesian' features. The model describes an economy composed of firms and consumers/workers. Firms belong to two industries. The first one performs R&D and produces heterogeneous...
Persistent link: https://www.econbiz.de/10010328657
process has an high probability to reach a final decision. We also better qualify the degree of manipulability of such a final …
Persistent link: https://www.econbiz.de/10010328377
In this paper we develop on a geometric model of social choice among bundles of interdependent elements (objects). Social choice can be seen as a process of search for optima in a complex multi-dimensional space and objects determine a decomposition of such a space into subspaces. We present a...
Persistent link: https://www.econbiz.de/10010328500
We develop a dynamic model where heterogeneous firms take investment decisions depending on their beliefs on future …
Persistent link: https://www.econbiz.de/10014541801
In productivity analysis an important issue is to detect how external (environmental) factors, exogenous to the production process and not under the control of the producer, might influence the production process and the resulting efficiency of the firms. Most of the traditional approaches...
Persistent link: https://www.econbiz.de/10010328547
assets' prices and agents' wealth. We assume that agents have heterogeneous beliefs and invest on each asset a fraction of …
Persistent link: https://www.econbiz.de/10011564737
holding constantly rebalanced portfolios based on their beliefs. Provided beliefs, and thus portfolios, are sufficiently … while diversity of beliefs is positively related to both momentum and reversal. …
Persistent link: https://www.econbiz.de/10012060620
incorrect beliefs about future events. Using the fully rational pricing as a benchmark, I show that when agents behave according … to the Subjective Generalized Kelly rule (Bottazzi et al., 2017), which is not optimal under agents' beliefs, the long … biases in beliefs and, as a consequence, improve the pricing performance of the economy. …
Persistent link: https://www.econbiz.de/10012060623