Suchergebnisse

This PhD thesis investigates the role of the reduction of fiscal autonomy and uncertainty in the allocation of resources in driving the behaviour of Italian municipalities in non-autonomous regions and of the central government. Focusing on the uncertainty of grants to compensate the abolition of the property tax on main dwellings, we construct a regression discontinuity (RD) and regression kink (RK) design to test how the behaviour of municipalities changes depending on whether they are in a "bad" state (when they manage fewer resources after property tax reform) or in a "good" state (when they manage more resources after property tax reform), and also in light of the "partisan effect" (the mechanism that allows central governments to allocate more resources to the lower layer of government politically aligned with it). An empirical analysis of Italian municipalities suggests that: 1. Municipalities acted differently in terms of waste tax implementation. Their behaviour depended on the benefits or costs they assumed af- ter the abolition of the property tax on main dwellings: in particular municipalities that suffered a loss of resources increased the waste tax more; 2. Property tax reform led to an imperfect substitution between the prop- erty tax on the main dwelling and the waste tax, with a consequent loss in equality; 3. Despite the weakness of the ex-post control and the absence of pun- ishment for lying municipalities concerning the definition of a compen- satory grant may allow the presence of a weak "partisan effect", the reform of the main dwelling property tax was transparent in resources allocation.

The recent Nobel Prize assigned to Paul Krugman "for his analysis of trade patterns and location of economic activity" witnesses the important role that the scienti�c community gives to the insights of the so-called New Economic Geography (NEG) literature. This field of economic analysis has always been particularly appealing to policy makers, given the direct link between its results and regional policy rules. For the same reason it is useful to deepen the analysis of its most important outputs by testing the theoretical robustness of some of its more relevant statements. This thesis tries to o¤er a contribution in this direction by focusing on a particular sub-field of NEG literature, the so-called New Economic Geography and Growth (NEGG) literature, having in Baldwin and Martin (2004) and Baldwin et. al (2004) the most important theoretical syntheses. These two surveys collect and present in an uni�ed framework the works by Baldwin, Martin and Ottaviano (2001), where capital is immobile and spillovers are localized, Martin and Ottaviano (1999) where spillovers are global and capital is mobile. Other related papers are Baldwin (1999) which introduces forward looking expectations in the so-called Footloose capital model developed by Martin and Rogers (1995); Baldwin and Forslid (1999) which introduces endogenous growth by means of a q-theory approach; Baldwin and Forslid (2000) where spillovers are localized, capital is immobile and migration is allowed. Some more recent developments in the NEGG literature can be distinguished in two main strands. One takes into consideration factor price differences in order to discuss the possibility of a monotonic relation between agglomeration and integration (Bellone and Maupertuis (2003) and Andres (2007)). The other one assumes firms heterogeneity in productivity (first introduced by Eaton and Kortum (2002) and Melitz (2003)) in order to analyse the relationship between growth and the spatial selection e¤ect leading the most productive firms to move to larger markets (see Baldwin and Okubo (2006) and Baldwin and Robert-Nicoud (2008). These recent developments are related to our work in introducing some relevant departures from the standard model. Indeed this thesis develops and extends the theoretical framework of New Economic Geography theory along several routes. In the third chapter of the thesis we develop a New Economic Geography and Growth model which, by using a CES utility function in the second-stage optimization problem, allows for expenditure shares in industrial goods to be endogenously determined. The implications of our generalization are quite rel-evant. In particular, we obtain the following novel results: 1) catastrophic agglomeration may always take place, whatever the degree of market integration, provided that the traditional and the industrial goods are su¢ ciently good substitutes; 2) the regional rate of growth is affected by the interregional allocation of economic activities even in the absence of localized spillovers, so that geography always matters for growth and 3) the regional rate of growth is af- fected by the degree of market openness: in particular, depending on whether the traditional and the industrial goods are good or poor substitutes, economic integration may be respectively growth-enhancing or growth-detrimental. In the fourth chapter of the thesis we build a New Economic Geography and Growth model based on Baldwin, Martin and Ottaviano (2001) with an additional sector producing Non-tradable goods (services). By assuming intersectoral and localized knowledge spillovers from the innovation sector to the service sector, we show that firms'allocation affects regional real growth. More precisely we assume that the unit labour requirements (and thereby the prices) in the service production are a negative function of the output of innovation, i.e. the stock of knowledge capital. Due to this new specification, real growth rates in the two regions always diverge when the firms allocation pattern differs from the symmetric one. This result is a novelty in the standard theoretical NEGG literature where regional gap in real growth rate is always zero. Moreover, this result has strong policy implications because it suggests that concentrating in- dustries in only one region may also bring a dynamic loss for the periphery. By analyzing the trade-o¤ between the dynamic gains of agglomeration (due to localized intertemporal spillovers) and the dynamic loss of agglomeration (due to localized intersectoral spillovers), we also discuss different notions of optimal level of agglomeration. The thesis will proceed as follows: in the chapters one and two we describe the state of the art in New Economic Geography and its further developments such as the New Economic Geography and Growth, the possibility of a monotonic relation between agglomeration and integration, and finally the firms heterogeneity in New Economic Geography models. Instead in chapters three and four we present our original contribution to the theory, i.e. the analysis of endogenous expenditure shares and intersectoral knowledge spillovers on the agglomeration patterns and economic growth.

Science is facing a fundamental turning point of its history. Never as in this historical moment it appears giant and powerful, but at the same time it shows high fragility: the concentration of information control power in the hands of few commercial groups, the iniquity of a system that benefits developed countries, the restriction of academic autonomy by political and economic power, the precariousness of working conditions of young researchers, the increase in the number of cases of scientific fraud and misconduct, the questioning of its authority by a portion of the public. Can openness be understood as a system capable of strengthening science and treating the diseases that afflict it?

Questa tesi utilizza metodologie differenti al fine di esplorare argomenti generalmente ascritti all'economia dello sviluppo. Il primo capitolo discute la letteratura sul capitale sociale scomponendolo nel suo componente strutturale, le reti, e cognitivo, la fiducia. Ogni componente è a sua volta scomposto in diverse sotto-dimensioni una delle quali, il particolarismo, è utilizzato nel secondo capitolo, sia a livello teorico che empirico, come determinante di forme di corruzione collusiva. Come previsto dalla teoria, il particolarismo ha un effetto positivo e causale sulla probabilità di offrire una tangente. Il terzo capitolo valuta l'impatto di un progetto di estensione agricola realizzato in Etiopia, volto ad introdurre la coltivazione di nuovi prodotti ortofrutticoli insieme ad alcune tecniche e strumenti innovativi. Empiricamente si utilizzano gli strumenti della valutazione d'impatto combinando confronti tra villaggi, attraverso una stima difference-in-differences, con una comparazione all'interno del villaggio usando uno studio controllato randomizzato. I risultati indicano che il progetto ha contribuito alla diversificazione produttiva ma non ha influenzato i ricavi ottenuti dalla vendita dei prodotti ortofrutticoli e, di conseguenza, il benessere delle famiglie. Il quarto capitolo mostra come meccanismi incentivati sufficientemente simili elicitino decisioni correlate in termini di avversione al rischio solo quando si tengono in considerazione altri atteggiamenti relativi al rischio. Inoltre si studia la correlazione tra l'avversione al rischio riportata e l'avversione al rischio ottenuta tramite lotterie. I risultati suggeriscono una misurata validità esterna dei due metodi studiati. ; This dissertation makes use of several methodologies to explore topics ascribed to the field of development economics. Chapter 1 reviews the literature on social capital by presenting a decomposition of trust and networks -- the cognitive and the structural component of social capital, respectively--, in several sub-dimensions. One of this dimension is used in chapter 2 where we investigate, both theoretically and empirically, the role played by the cultural norm of particularism, as opposed to universalism, for collusive bribery. Consistent with the theory, particularism is found to have a positive causal effect on the probability of offering a bribe. Chapter 3 assesses the impact of a small-scale agricultural extension project implemented in rural Ethiopia aimed at introducing the cultivation of horticultural gardens. Empirically, a mixed impact evaluation design is used combining across-villages comparisons, through difference-in-differences estimations, with a within village randomized control trial. The findings indicate that the project contributes to production diversification while it does not influence total revenues from sales, household welfare and diet. Chapter 4 shows that similar incentivized mechanisms elicit similar decisions in terms of monetary risk aversion only if other risk-related attitudes are accounted for. Furthermore, it examines whether individuals' characteristics and a self-assessed measure of risk aversion relate to individuals' choices in lotteries. The findings suggest that there is some external validity of the two studied tasks as predictors of self-reported risk attitudes.