Three Essays on Development and the Political Economy of South Asia

This dissertation consists of three essays on various aspects of development and the political economy of developing countries. The first two chapters share a focus on issues of political economy in South Asia, the first examining the influence of politics over public goods allocations, and the second the effects of ethno-religious politics on voter behavior, violence, and policy outcomes. The third chapter shares with the first two its geographic setting, being located in South Asia, but focuses on education, employing an RCT design to evaluate the efficacy of public-private partnerships in delivering high-quality primary education to remote communities. The first chapter examines the role of political parties in India's national government in shaping public goods allocations. Party preference is often regarded as important for shaping policy outcomes, but the empirical literature has yielded mixed results, with some research finding substantial party effects, and other research little to none. The discrepancies in estimated party effects are likely due to a combination of heterogeneous party characteristics and institutional context, as well as the the nature of political competition itself, with parties facing a trade-off in the promotion of their most preferred policies against the electoral incentive to cater to the median voter. To generate random random variation in party identity, I make use of the assassination of the Congress party leader, Rajiv Gandhi, in the midst of India's 1991 national elections, which had the effect of dramatically increasing the probability of Congress victory for a subset of constituencies. Using this variation, I find that representation by the ruling Congress party leads to a substantial increase in the provision of public goods favored by the poor, consistent with the party's expressed populist agenda. Among the salient changes are increases in the availability of drinking water and declines in infrastructure such as productive electrification and paved roads. I also estimate party effects using a regression discontinuity identification strategy, which generates variation in party identity for closely contested elections. Here I find little effect of Congress representation on public goods allocations. I argue that the reason for the differences between the results estimated with the two identification strategies is the importance of both the identity of the winning party, as well as the margin of victory. The second chapter examines the role of ethno-religious propaganda in generating support for political parties espousing ideologies of ethno-religious nationalism. A significant literature has shown the effects of political campaigns and media bias in influencing voter behavior. Ethnic identity often figures prominently in campaigns of voter mobilization, particularly in developing countries, where ethnic identities tend to be more salient, and state resources more subject to capture through power over the state. A large body of research has shown the ways in which, not only does ethnic diversity create an environment conducive to the ethnicization of political competition, but political competition itself contributes to the increased salience of ethnic identity.Prior to India's 1991 national elections, the leader of the Hindu-nationalist BJP political party toured northern India on a "pilgrimage" to the city of Ayodhya, holding numerous rallies along the way to promote the construction of a Hindu temple there. Causal identification of the campaign's effects comes through the incidental exposure of localities due to their lying along the road joining the cities which were the ultimate destinations of the campaign. The main result is that the campaign increased the BJP's vote share by 5-9 percentage points in visited constituencies, which translated to a 10-20 percentage points increase in the probability of victory. I also find that the campaign significantly increased the probability of riots, which were 9 percentage points more likely to occur in constituencies through which the campaign passed; and that the riots associated with the campaign increased the party's vote share by 3.5 percentage points. There is also evidence that the campaign increased the availability of local public goods, with the sub-district through which the campaign directly passed showing a 3-6 percentage points increase in a variety of public goods, such as electrification, drinking water, and primary schools. The third chapter, which is jointly authored with Leigh Linden, Felipe Barrera-Osorio, Dhushyanth Raju, and Matthew Hoover, examines the efficacy of public-private partnerships for delivering high-quality primary education to remote, and underserved, communities. Private entrepreneurs were enlisted to establish and operate primary schools throughout rural Sindh province in Pakistan, for which they were paid a per-child subsidy, with all local children between the ages of 5 and 9 allowed tuition-free enrollment. To address potential sources of endogeneity, the intervention was designed as a randomized control trial (RCT): 263 villages were identified as qualifying for the program, of which 200 were randomly assigned a school. In addition, half of the treatment villages were assigned a subsidy scheme whereby entrepreneurs were paid slightly more for girls than boys. The program proved remarkably effective, with enrollment increasing by 30-50 percentage points. Child test scores also improved considerably, with children in treatment villages scoring 0.67 standard deviations higher on administered exams. Interestingly, there was no differential effect on female enrollment for either subsidy scheme, which we attribute to the lack of a pre-existing gender gap in enrollment

Lightning Imaging Sensor on International Space Station

No abstract availabl

The Inner Halo of M87: A First Direct View of the Red-Giant Population

An unusually deep (V,I) imaging dataset for the Virgo supergiant M87 with the Hubble Space Telescope ACS successfully resolves its brightest red-giant stars, reaching M_I(lim) = -2.5. After assessing the photometric completeness and biasses, we use this material to estimate the metallicity distribution for the inner halo of M87, finding that the distribution is very broad and likely to peak near [m/H] ~ -0.4 and perhaps higher. The shape of the MDF strongly resembles that of the inner halo for the nearby giant E galaxy NGC 5128. As a byproduct of our study, we also obtain a preliminary measurement of the distance to M87 with the TRGB (red-giant branch tip) method; the result is (m-M)_0 = 31.12 +- 0.14 (d = 16.7 +- 0.9 Mpc). Averaging this result with three other recent techniques give a weighted mean d(M87) = (16.4 +- 0.5) Mpc.Comment: In press for Astronomy and Astrophysic

Global Patterns of Lightning Properties Derived by LIS

The Lightning Imaging Sensor LIS aboard the TRMM satellite provides unmatched empirical data of the global lightning distribution (up to approx.35deg S/N) since end of 1997. Climatological flash rate densities derived from LIS are standard references, e.g. for flash rate parameterizations used in GCMs. It is known that flash characteristics are quite variable, and that various quantities (like the flash energy or the NOx production per flash) vary considerably, statistically as well as systematically on regional and seasonal scales. LIS provides information beyond flash counts, in particular radiance and flash footprint. Here we present an analysis of global patterns of various lightning properties derived from LIS, in relation to the number of flashes. These normalized flash characteristics show consistent spatial patterns of regions with "strong" versus regions with "weak" lightning. Most striking is a clear land-ocean contrast, with oceanic flashes being "stronger" than continental flashes. But also over continents, flash strength shows systematic variations. Highest continental values are found over the US, while values over South America and India are quite low. These regional variations cannot be simply parameterized as function of latitude. Information on spatial patterns of mean flash "strength", though rather qualitative up to now, is potentially a valuable input for improving empirical parameterizations based on flash counts (like precipitation or lightning NOx). Further investigation is in progress to come to a more physical and quantitative understanding of the spatial patterns of the different LIS properties. In particular, it has to be checked how far they could be related to established lightning properties (like energy or the fraction of intra-cloud to cloud-to-ground flashes) or to meteorological quantities (like CAPE)

The Principal Axis of the Virgo Cluster

Using accurate distances to individual Virgo cluster galaxies obtained by the method of Surface Brightness Fluctuations, we show that Virgo's brightest ellipticals have a remarkably collinear arrangement in three dimensions. This axis, which is inclined by 10 to 15 degrees from the line of sight, can be traced to even larger scales where it appears to join a filamentary bridge of galaxies connecting Virgo to the rich cluster Abell 1367. The orientations of individual Virgo ellipticals also show some tendency to be aligned with the cluster axis, as does the jet of the supergiant elliptical M87. These results suggest that the formation of the Virgo cluster, and its brightest member galaxies, have been driven by infall of material along the Virgo-A1367 filament.Comment: 8 pages, 4 figures, accepted for publication in ApJ Letter

Surface Brightness Fluctuations from archival ACS images: a stellar population and distance study

We derive Surface Brightness Fluctuations (SBF) and integrated magnitudes in the V- and I-bands using Advanced Camera for Surveys (ACS) archival data. The sample includes 14 galaxies covering a wide range of physical properties: morphology, total absolute magnitude, integrated color. We take advantage of the latter characteristic of the sample to check existing empirical calibrations of absolute SBF magnitudes both in the I- and V-passbands. Additionally, by comparing our SBF and color data with the Teramo-SPoT simple stellar population models, and other recent sets of population synthesis models, we discuss the feasibility of stellar population studies based on fluctuation magnitudes analysis. The main result of this study is that multiband optical SBF data and integrated colors can be used to significantly constrain the chemical composition of the dominant stellar system in the galaxy, but not the age in the case of systems older than 3 Gyr. SBF color gradients are also detected and analyzed. These SBF gradient data, together with other available data, point to the existence of mass dependent metallicity gradients in galaxies, with the more massive objects showing a non--negligible SBF versus color gradient. The comparison with models suggests that such gradients imply more metal rich stellar populations in the galaxies' inner regions with respect to the outer ones.Comment: ApJ Accepte

Imprints of Environment on Cluster and Field Late-type Galaxies at z~1

We present a comparison of late-type galaxies (Sa and later) in intermediate redshift clusters and the field using ACS imaging of four cluster fields: CL0152-1357, CL1056-0337 (MS1054), CL1604+4304, and CL1604+4321. Concentration, asymmetry, and clumpiness parameters are calculated for each galaxy in blue (F606W or F625W) and red (F775W or F814W) filters. Galaxy half-light radii, disk scale lengths, color gradients, and overall color are compared. We find marginally significant differences in the asymmetry distributions of spiral and irregular galaxies in the X-ray luminous and X-ray faint clusters. The massive clusters contain fewer galaxies with large asymmetries. The physical sizes of the cluster and field populations are similar; no significant differences are found in half-light radii or disk scale lengths. The most significant difference is in rest-frame $U-B$ color. Late-type cluster galaxies are significantly redder, $\sim 0.3$ magnitudes at rest-frame $U-B$, than their field counterparts. Moreover, the intermediate-redshift cluster galaxies tend to have blue inward color gradients, in contrast to the field galaxies, but similar to late-type galaxies in low redshift clusters. These blue inward color gradients are likely to be the result of enhanced nuclear star formation rates relative to the outer disk. Based on the significant rest-frame color difference, we conclude that late-type cluster members at $z\sim0.9$ are not a pristine infalling field population; some difference in past and/or current star formation history is already present. This points to high redshift ``groups'', or filaments with densities similar to present-day groups, as the sites where the first major effects of environment are imprinted.Comment: updated titl

The Next Generation Virgo Cluster Survey (NGVS). XVIII. Measurement and Calibration of Surface Brightness Fluctuation Distances for Bright Galaxies in Virgo (and Beyond)

We describe a program to measure surface brightness fluctuation (SBF) distances to galaxies observed in the Next Generation Virgo Cluster Survey (NGVS), a photometric imaging survey covering $104~deg^2$ of the Virgo cluster in the ${u}^*,g,i,z$ bandpasses with the Canada-France Hawaii Telescope. We describe the selection of the sample galaxies, the procedures for measuring the apparent $i$-band SBF magnitude $\bar{i}$, and the calibration of the absolute $\bar{M}_i$ as a function of observed stellar population properties. The multi-band NGVS data set provides multiple options for calibrating the SBF distances, and we explore various calibrations involving individual color indices as well as combinations of two different colors. Within the color range of the present sample, the two-color calibrations do not significantly improve the scatter with respect to wide-baseline, single-color calibrations involving $u^{*}$. We adopt the ${u}^*{-}z$ calibration as reference for the present galaxy sample, with an observed scatter of 0.11 mag. For a few cases that lack good ${u}^*$ photometry, we use an alternative relation based on a combination of $g{-}i$ and $g{-}z$ colors, with only a slightly larger observed scatter of 0.12 mag. The agreement of our measurements with the best existing distance estimates provides confidence that our measurements are accurate. We present a preliminary catalog of distances for 89 galaxies brighter than $B_T\approx13.0$ mag within the survey footprint, including members of the background M and W Clouds at roughly twice the distance of the main body of the Virgo cluster. The extension of the present work to fainter and bluer galaxies is in progress.Comment: ApJ accepte