614 research outputs found

    Essays on Applied Economics

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    It Never Rains But It Pours: weather shocks on sectoral wage in US counties. Does Foreign Aid Fuel Trust

    SHOOTING DOWN THE PRICE: EVIDENCE FROM MAFIA HOMICIDES AND HOUSING MARKET VOLATILITY

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    In this work, we assess the role of a specific type of organized crime in influencing choices on where living within the city territory, and consequently, volatility in house prices. More specifically, we test how organized crime killing may influence house pricing behaviors. Firstly, we show evidences about how organized crime is associated with higher inequality of housing prices for Italian cities in 2011. Then, by collecting and geo referencing data on the city of Naples for the period 2002-2016, we test for the direct influence of homicides on the relevant territory, as on the neighboring districts. Results show a negative and significant impact of killing on the house prices either for sales or for rents and a positive effect in neighboring district, driving increases in within-city inequality

    Using the transit of Venus to probe the upper planetary atmosphere

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    The atmosphere of a transiting planet shields the stellar radiation providing us with a powerful method to estimate its size and density. In particular, because of their high ionization energy, atoms with high atomic number (Z) absorb short-wavelength radiation in the upper atmosphere, undetectable with observations in visible light. One implication is that the planet should appear larger during a primary transit observed in high energy bands than in the optical band. The last Venus transit in 2012 offered a unique opportunity to study this effect. The transit has been monitored by solar space observations from Hinode and Solar Dynamics Observatory (SDO). We measure the radius of Venus during the transit in three different bands with subpixel accuracy: optical (4500A), UV (1600A, 1700A), Extreme UltraViolet (EUV, 171-335A) and soft X-rays (about 10A). We find that, while the Venus optical radius is about 80 km larger than the solid body radius (the expected opacity mainly due to clouds and haze), the radius increases further by more than 70 km in the EUV and soft X-rays. These measurements mark the densest ion layers of Venus' ionosphere, providing information about the column density of CO2 and CO. They are useful for planning missions in situ to estimate the dynamical pressure from the environment, and can be employed as a benchmark case for observations with future missions, such as the ESA Athena, which will be sensitive enough to detect transits of exoplanets in high-energy bands.Comment: 13 pages, 2 figures; published in Nature Communications; the full and copy-edited version is open access at http://www.nature.com/ncomms/2015/150623/ncomms8563/full/ncomms8563.htm

    Assessing the profitability and feasibility of climate-smart agriculture investment in Southern Malawi

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    This working paper analyses the financial cost and benefit of adopting two different bundles of climate-smart agriculture (CSA) practices, which are tailored for the diverse conditions that prevail in southern Malawi. The results show the integration of CSA practices, including soil conservation, agroforestry, and livestock diversification, into conventional maize-legume and maize monocrop systems is profitable for farmers. Moreover, the profitability of these systems increases under extreme weather conditions that occur with increasing frequency in the region. However, the upfront costs and cost variability associated with the adoption of these CSA scenarios is high relative to conventional practices. In addition, while the Net Present Value is positive for the CSA scenarios, the monetary returns are small and are spread over a long investment period. These factors act as significant barriers to adopting CSA practices. Supporting farmers through climate financing or other mechanisms to make long-term private investment in CSA, based on the public benefits these investments generate for the environment, is critical for achieving widespread adoption

    Climate Resilience Pathways of Rural Households. Evidence from Ethiopia

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    This paper explores the resilience capacity of rural Ethiopian households after the drought shock occurred in 2011. The work develops an original empirical framework able to capture the policy and socio-economic determinants of households’ resilience capacity by making parametric statistical assumption on the resilience distribution. To this end, the analysis employs a two-wave representative panel dataset aligned with detailed weather records while controlling for a large set of household- and community-level characteristics. The analysis shows that the majority of these factors affects significantly resilience capacity only in the group of households affected by the drought shock, suggesting that the observed effect relates to the adaptive capacity enabled by these factors, rather than a simple welfare effect. Three policy indications emerge from the findings of the empirical model. First, government support programmes, such as the PSNP, appear to sustain households’ resilience by helping them to reach the level of pre-shock total consumption, but have no impact on the food-consumption resilience. Secondly, the “selling out assets strategy” affects positively on households’ resilience, but only in terms of food consumption. Finally, the presence of informal institutions, such as social networks providing financial support, sharply increases households’ resilience by helping them to reach pre-shock levels of food and total consumption. Policies incentivizing the formation of these networks, through the participation of households to agricultural cooperative, agricultural associations, or community projects, may also help farmers in recovering their wealth level after a weather shoc

    Essays on Applied Economics

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    It Never Rains But It Pours: weather shocks on sectoral wage in US counties. Does Foreign Aid Fuel Trust?It Never Rains But It Pours: weather shocks on sectoral wage in US counties. Does Foreign Aid Fuel Trust?LUISS PhD Thesi

    Shooting Down the Price: Evidence from Mafia Homicides and Housing Market Volatility

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    In this paper we estimate the effect of the homicides by the Camorra, the Neapolitan Mafia, on housing prices in Naples. The study develops on a unique panel dataset at the administrative district level for the period 2002-2018 of geo-localized homicides involving innocent victims (denoted as IVH ), which are treated as exogenous shocks that negatively affect housing demand. We find that the occurrence of such homicides causes a decrease in housing prices in the range of 2.5 − 3.8 percentage points. This effect decreases with the distance from an IVH and over time. These results are robust to the utilization of different econometric specifications and to the considerations of possible confounding factors such as other types of textitCamorra homicides

    Shooting down the price: Evidence from Mafia homicides and housing prices

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    In this paper, we estimate the effect of the homicides by the Camorra, the Neapolitan Mafia, on housing prices in Naples. The study develops on a unique panel data set at the administrative district level for the period 2002–2018 of geo-localized homicides involving innocent victims (denoted as IVH), which are treated as exogenous shocks that negatively affect housing demand. We find that the occurrence of such homicides causes a decrease in housing prices in the range of 2.5–3.8 percentage points. This effect decreases with the distance from an IVH and over time. These results are robust to the utilization of different econometric specifications and to the considerations of possible confounding factors such as other types of Camorra homicides
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