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The Role of Design Complexity in Technology Improvement
No full textWe study a simple model for the evolution of the cost (or more gen-
erally the performance) of a technology or production process. The
technology can be decomposed into n components, each of which
interacts with a cluster of dWe study a simple model for the evolution of the cost (or more gen-
erally the performance) of a technology or production process. The
technology can be decomposed into n components, each of which
interacts with a cluster of dRefereed Working Papers / of international relevanc
Soggettività tributaria e residenza fiscale nei rapporti internazionali.
No full textLa soggettività tributaria. La stabile organizzazione. I soggetti non residenti.La soggettività tributaria. La stabile organizzazione. I soggetti non residenti.LUISS PhD Thesi
Maintenance and investment: complements or substitutes? A reappraisal
No full textA benchmark AK optimal growth model with maintenance expenditures and endogenous utilization of capital is considered within an explicit vin- tage capital framework. Scrapping is endogenous, and the model allows for a clean distinction between age and usage dependent capital deprecia- tion and obsolescence. It is also shown that in this set-up past investment profile completely determines the size of current maintenance expendi- tures. Among other findings, a closed-form solution to optimal dynam- ics is provided taking advantage of very recent development in optimal control of infinite dimensional systems. More importantly, and in con- trast to the pre-existing literature, we study investment and maintenance co-movements without any postulated ad-hoc depreciation function. In particular, we find that optimal investment and maintenance do move to- gether in the short-run in response to neutral technological shocks, which seems to be more consistent with the data.A benchmark AK optimal growth model with maintenance expenditures and endogenous utilization of capital is considered within an explicit vin- tage capital framework. Scrapping is endogenous, and the model allows for a clean distinction between age and usage dependent capital deprecia- tion and obsolescence. It is also shown that in this set-up past investment profile completely determines the size of current maintenance expendi- tures. Among other findings, a closed-form solution to optimal dynam- ics is provided taking advantage of very recent development in optimal control of infinite dimensional systems. More importantly, and in con- trast to the pre-existing literature, we study investment and maintenance co-movements without any postulated ad-hoc depreciation function. In particular, we find that optimal investment and maintenance do move to- gether in the short-run in response to neutral technological shocks, which seems to be more consistent with the data.Refereed Working Papers / of international relevanc
Users' Perception of the Quality of Open Source e-learning Platforms: the case of Moodle
No full textUninvited Submission
Fiducia e tecnologia nelle relazioni elettroniche inter-organizzative
No full textIl caso delle organizzazioni virtuali. Il caso LD-CAST. Il caso delle tecnologie per l'autenticazione federata: benefici attesi tangibili vs intangibili.Il caso delle organizzazioni virtuali. Il caso LD-CAST. Il caso delle tecnologie per l'autenticazione federata: benefici attesi tangibili vs intangibili.LUISS PhD Thesi
On the possibility, grounds and limits of international toleration: an analysis on John Rawls and Jurgen Habermas
No full textMapping toleration and its international aspect. Toleration in Rawls's political liberalism. Toleration in Rawls's The Law of Peoples. Habermas and toleration as an intra-state issue. Habermas and toleration as an international issue. Further reflections on the possible dimensions of a theory of international toleration for the 21st century.Mapping toleration and its international aspect. Toleration in Rawls's political liberalism. Toleration in Rawls's The Law of Peoples. Habermas and toleration as an intra-state issue. Habermas and toleration as an international issue. Further reflections on the possible dimensions of a theory of international toleration for the 21st century.LUISS PhD Thesi
Inferring Social Preferences over Income Distributions through Axioms
No full textNumerous prior experimental studies have attempted to elicit people’s preferences over income
distributions through appropriately incentivated questions asking subjects to choose between distributions.
Instead, we follow the theoretical literature and start with the principles underlying these preferences.
Such principles include, for example, the Rawlsian principle and the Lorenz principle. We implement
possibly the first incentivated experiment concentrating solely and directly on these underlying principles.
In essence, the experiment asks subjects to state their preferred principles, with the appropriate incentive
being provided by the experimenter using the stated axioms to choose a preferred distribution from a
randomly generated set, and this preferred distribution then being implemented on the participants in the
experiment. Thus one of the subjects becomes the Social Planner. (We have two treatments, one in which
the Social Planner is part of society and the second in which the Social Planner is outside society.) We solve
problems implied when the chosen set of principle is either mutually contradictory or incomplete (by allowing sequential choice). We observe that the implied social preferences are different from those inferred indirectly through choice over distributions as in the earlier experimental studies, and that elicited preferences are different between the two treatments, suggesting that the disinterested Social Planner is more Equality-preferring than the Social Planner with self-interest.Numerous prior experimental studies have attempted to elicit people’s preferences over income
distributions through appropriately incentivated questions asking subjects to choose between distributions.
Instead, we follow the theoretical literature and start with the principles underlying these preferences.
Such principles include, for example, the Rawlsian principle and the Lorenz principle. We implement
possibly the first incentivated experiment concentrating solely and directly on these underlying principles.
In essence, the experiment asks subjects to state their preferred principles, with the appropriate incentive
being provided by the experimenter using the stated axioms to choose a preferred distribution from a
randomly generated set, and this preferred distribution then being implemented on the participants in the
experiment. Thus one of the subjects becomes the Social Planner. (We have two treatments, one in which
the Social Planner is part of society and the second in which the Social Planner is outside society.) We solve
problems implied when the chosen set of principle is either mutually contradictory or incomplete (by allowing sequential choice). We observe that the implied social preferences are different from those inferred indirectly through choice over distributions as in the earlier experimental studies, and that elicited preferences are different between the two treatments, suggesting that the disinterested Social Planner is more Equality-preferring than the Social Planner with self-interest.Non-Refereed Working Papers / of national relevance onl
Lachmannian Insights into Strategic Entrepreneurship: Resources, Activities and Routines in a Disequilibrium World
No full textRecent contributions to the organizational literature see the radical subjectivist and disequilibrium framework of Ludwig Lachmann as providing a suitable foundation for strategic entrepreneurial studies, in that his approach seeks independence from conventional equilibrium-based reasoning. In a Lachmannian spirit, this article
suggests that strategizing can fruitfully be viewed as choices made by the entrepreneur in terms of the organization’s constituent resources, activities and
routines together with their recombinations and complexifications. Cast in a general, disequilibrium setting, the strategic goals that guide the organizational entrepreneur’s strategizing can be formulated in terms of the construction and capture of resource complementarities, the pursuit of increasing returns through activities reconfiguration; and the generation of learning and dynamic capabilities through reconfiguration of routines. Once formulated in this way, the strategizing issues may be seen to make sense not just in the comparative static and imperfect equilibrium frameworks within which they have hitherto been posed, but in a more general dynamic and
disequilibrium setting that corresponds to the real conditions in which firms are required to make entrepreneurial decisions. The simplified framework offers some hope for overcoming the balkanization of management scholarship that is so widely deplored.Recent contributions to the organizational literature see the radical subjectivist and disequilibrium framework of Ludwig Lachmann as providing a suitable foundation for strategic entrepreneurial studies, in that his approach seeks independence from conventional equilibrium-based reasoning. In a Lachmannian spirit, this article
suggests that strategizing can fruitfully be viewed as choices made by the entrepreneur in terms of the organization’s constituent resources, activities and
routines together with their recombinations and complexifications. Cast in a general, disequilibrium setting, the strategic goals that guide the organizational entrepreneur’s strategizing can be formulated in terms of the construction and capture of resource complementarities, the pursuit of increasing returns through activities reconfiguration; and the generation of learning and dynamic capabilities through reconfiguration of routines. Once formulated in this way, the strategizing issues may be seen to make sense not just in the comparative static and imperfect equilibrium frameworks within which they have hitherto been posed, but in a more general dynamic and
disequilibrium setting that corresponds to the real conditions in which firms are required to make entrepreneurial decisions. The simplified framework offers some hope for overcoming the balkanization of management scholarship that is so widely deplored.Non-Refereed Working Papers / of national relevance onl
Existence and Uniqueness of Semiparametric Projections
No full textIn this paper we propose primitive conditions under which a projection of a conditional density onto a set defined by conditional moment restrictions exists and is unique. Moreover, we provide an analytic expression of the obtained projection. Our first result is to show the existence when the moment function is bounded. The result is as we would expect from the analogous results obtained in the unconditional case. Our second result relaxes the boundedness assumption and replaces it with a correct specification condition. Showing that the correct specification of the moment function is sufficient for the projection to exist is entirely new and not yet seen in the literature.In this paper we propose primitive conditions under which a projection of a conditional density onto a set defined by conditional moment restrictions exists and is unique. Moreover, we provide an analytic expression of the obtained projection. Our first result is to show the existence when the moment function is bounded. The result is as we would expect from the analogous results obtained in the unconditional case. Our second result relaxes the boundedness assumption and replaces it with a correct specification condition. Showing that the correct specification of the moment function is sufficient for the projection to exist is entirely new and not yet seen in the literature.Non-Refereed Working Papers / of national relevance onl
