performance evaluation of optimized portfolio insurance strategies abstract we use s p 500 index return data for the time period 1985 2013 to evaluate the performance of portfolio insurance strategies we shed light on the question if the performance of a constant proportion portfolio insurance cppi strategy can be improved by means of a time varying multiplier which depends on the estimated future volatility neglecting any inter temporal hedging demand the theoretical foundation of the strategies is given by maximizing the expected utility of a hara investor in a diffusion model setup if the risk premium is assumed to be proportional to the variance the optimal strategy is a cppi strategy otherwise the multiple is time varying ppi it turns out that even time varying multiple strategies based on a rolling window of historical volatility estimates give a significant improvement of cppi strategies the out performance is robust w r t alternative performance measures and is also true for proportional transaction costs and adequate trigger trading

dynamic asset allocation with event risk major events often trigger abrupt changes in stock prices and volatility we study the implications of jumps in prices and volatility on investment strategies using the event risk framework of duffie pan and singleton 2000 we provide analytical solutions to the optimal portfolio problem event risk dramatically affects the optimal strategy an investor facing event risk is less willing to take leveraged or short positions the investor acts as if some portion of his wealth may become illiquid and the optimal strategy blends both dynamic and buy and hold strategies jumps in prices and volatility both have important effects

jumps cojumps and macro announcements we use recently proposed tests to extract jumps and cojumps from three types of assets stock index futures bond futures and exchange rates we then characterize the dynamics of these discontinuities and informally relate them to us macroeconomic releases before using limited dependent variable models to formally model how news surprises explain co jumps nonfarm payroll and federal funds target announcements are the most important news across asset classes trade balance shocks are important for foreign exchange jumps we relate the size frequency and timing of jumps across asset classes to the likely sources of shocks and the relation of asset prices to fundamentals in the respective classes

energy retrofitting of urban buildings a socio spatial analysis of three mid sized italian cities abstract the current paper analyses the issue of energy retrofitting of buildings in italian cities in particular a mixed method approach is used combining the socio spatial analysis of data on the most relevant policy tool namely tax deduction together with qualitative analysis of three case studies of middle sized cities the results show that on the one hand tax deduction has not been very effective in promoting a deep renovation of buildings and it may exacerbate already existing inequalities on the other hand it emerges that progress in eco retrofit of buildings depends mainly on creation of new intermediators and intermediation incentives they are increasingly necessary in an urban panorama that has become inevitably polycentric

the tax revolt and electoral competition this paper explores the effect of electoral competition onstate and local expenditures in the us during the politicalenvironment following the tax revolt of the late 1970s itutilizes a theoretical model in which both electoralcompetition and tax and expenditure limits impact spending empirical results indicate the tax revolt s primary impact wastransmitted through political candidate competition notthrough the adoption of tax or expenditure limitations as iscommonly believed however tax and expenditure limits doaffect public education expenditures

who should buy long term bonds according to conventional wisdom long term bonds are appropriate for conservative long term investors this paper develops a model of optimal consumption and portfolio choice for infinite lived investors with recursive utility who face stochastic interest rates solves the model using an approximate analytical method and evaluates conventional wisdom as risk aversion increases the myopic component of risky asset demand disappears but the intertemporal hedging component does not conservative investors hold assets to hedge the risk that real interest rates will decline long term inflation indexed bonds are most suitable for this purpose but nominal bonds may also be used if inflation risk is low

the stages of the policy process and the equal rights amendment 1972 1982 studies of how social movements impact policy outcomes typically treat policy change as a dichotomous phenomenon a governmental unit either adopts or does not adopt a particular policy in a particular time frame this simplistic view of the policy process runs the risk of masking how movements and other factors matter at various stages of the policy process each stage is characterized by different rules and different consequences thus movements and other factors ought to matter differently at each stage the authors examine three stages of policy development with regard to state ratification of the equal rights amendment results show that movements mattered more to legislative decisions in the earlier stages of the policy process but that their effects were eclipsed in later stages by public opinion

getting out the vote participation in gubernatorial elections scholarship on electoral turnout has long emphasized two main themes explanations of nonvoting in terms of individual characteristics and in terms of contextual variables these investigations have deeply enriched our understanding of electoral participation but their limitations have also sensitized us to the remaining problems of explanation perusal of the work on american politics exposes a rather striking tendency in studies of participation to ignore or soft pedal the effects of active political mobilization in this article we formulate two models of electoral turnout socioeconomic and political mobilization and apply them to aggregate data on voting in gubernatorial elections of 1978 and 1980 the socioeconomic model of turnout includes such influences as income age and educational attainment to assess the effects of political mobilization we have considered campaign spending partisan competition electoral margin and the presence or absence of a simultaneous race for the united states senate both of the models perform quite well individually producing significant and meaningful coefficients and adequate fits yet in the final analysis we demonstrate that quite apart from major sources of variation in gubernatorial turnout such as region and presidential versus nonpresidential years the mobilizing influences of campaign activism and competitiveness have a strong impact on electoral participation electoral law i e closing date of registration retains a small but significant effect on voting for governor and socioeconomic characteristics included in a fully specified model have little to contribute independently to an explanation of electoral turnout these findings are very much in the same vein as related cross national investigations which emphasize the crucial role of electoral law and political parties and downplay individual characteristics as determinants of electoral participation on the basis of the research reported here we argue that scholars need to pay more attention to political mobilization as an explanation of electoral turnout in the presidential election between cox and harding in 1920 only half of the eligible voters participated this relatively low turnout together with the historically minimal rates of participation in state and local elections created deep concern among those who believed that reasonably high levels of political involvement are crucial in maintaining a healthy democratic politics it was in this atmosphere of worry about low electoral turnout that charles e merriam and harold f gosnell 1924 conducted in the city of chicago the first systematic study of nonvoting subsequently gosnell 1927 went even further and executed the first experimental study in modern political science demonstrating conditions that could stimulate electoral turnout we too worry about low participation in elections today at every level of government and we believe these classic studies

competition in the political arena and local government performance competition reduces rent extraction in private sector firms in this article we empirically assess whether it similarly disciplines politicians by evaluating local level governments performance in flanders the results indicate that electoral competition measured via the number of parties competing in elections significantly positively affects the productive efficiency of municipal policy intertemporal competition measured as the volatility of election outcomes over time has a similar but weaker positive effect these beneficial effects are mitigated by the fact that competition may lead to more fragmented governments which is shown to work against their productive efficiency overall though the beneficial effects outweigh the unfavourable ones in our sample

the reality of stock market jumps diversification abstract we propose a non parametric procedure for estimating systemic co jumps and independent idiosyncratic jumps for 35 stock markets and study news associated with these jumps as reported in factiva and bloomberg from 1988 to 2014 our results suggest that it is important to distinguish between systemic co jumps and idiosyncratic jumps we find both types of jumps have important implications for home bias investors while idiosyncratic jumps have economically significant impact on portfolio weights for emerging markets our news analysis suggests systemic jumps are typically caused by currency crises sectoral failure liquidity issues and deteriorating economic climate while idiosyncratic jumps are usually caused by political unrest currency instability and large firm effects on small economies in fact many of the idiosyncratic jumps share the same origin although different stock markets experienced the impact differently at different times

evolutionary portfolio selection with liquidity shocks insurance companies invest their wealth in financial markets the wealth evolution strongly depends on the success of their investment strategies but also on liquidity shocks which occur during unfavourable years when indemnities to be paid to the clients exceed collected premia an investment strategy that does not take liquidity shocks into account exposes insurance companies to the risk of bankruptcy when liquidity shocks and low investment payoffs jointly appear therefore regulatory authorities impose solvency restrictions to ensure that insurance companies are able to face their obligations with high probability this paper analyses the behaviour of insurance companies in an evolutionary framework we show that an insurance company that merely satisfies regulatory constraints will eventually vanish from the market we give a more restrictive no bankruptcy condition for the investment strategies and we characterize trading strategies that are evolutionary stable i e able to drive out any mutation

isolated capital cities accountability and corruption evidence from us states we show that isolated capital cities are robustly associated with greater levels of corruption across us states in line with the view that this isolation reduces accountability we then provide direct evidence that the spatial distribution of population relative to the capital affects different accountability mechanisms newspapers cover state politics more when readers are closer to the capital voters who live far from the capital are less knowledgeable and interested in state politics and they turn out less in state elections we also find that isolated capitals are associated with more money in state level campaigns and worse public good provision jel d72 d73 h41 h83 k42 r23

a politico economic theory of income redistribution this study integrates models of income redistribution developed by economists who suggest that citizens voluntarily redistribute because of interdependent preferences and rely on the state for implementation owing to the public good nature of redistribution and political scientists who focus on conditions that lead to demands that the state intervene to assist the poor and on the development of institutions that facilitate such demands we propose a testable theory of redistribution and apply it to data from the american states the empirical analysis addresses determinants of the aid to families with dependent children guarantee adjusted for medicaid and food stamps to which a family receiving the guarantee would be entitled we posit significant links between the guarantee and both observable explanatory variables such as per capita income and latent constructs such as liberal party control we specify observable indicators for the latent constructs and use the lisrel method to estimate parameters for the indicators and structural coefficients the findings show that both political and economic variables significantly affect the level of the guarantee

negotiating comfort in low energy housing the politics of intermediation optimising the energy performance of buildings is technically and economically challenging but it also has significant social implications maintaining comfortable indoor conditions while reducing energy consumption involves careful design construction and management of the built environment and its inhabitants in this paper we present findings from the study of a new low energy building for older people in grenoble france where conflicts emerged over the simultaneous pursuit of energy efficiency and comfort the findings contribute to the contemporary literature on the sociotechnical study of buildings and energy use by focusing on intermediation those activities that associate a technology to end users intermediation activities take many forms and in some cases can result in the harmonisation or alignment of energy efficiency goals and comfort goals in other cases intermediation is unsuccessful leading to the conventional dichotomy between optimising technical performance and meeting occupant preferences by highlighting the multiple ways that comfort and energy efficiency is negotiated we conclude that buildings are provisional achievements that are constantly being intermediated this suggests that building energy efficiency policies and programmes need to provide opportunities for intermediaries to negotiate the desires and preferences of the multiple stakeholders that are implicated in low energy buildings

the political economy of government responsiveness theory and evidence from india the determinants of government responsiveness to its citizens is a key issue in political economy here we develop a model based on the solution of political agency problems having a more informed an politically active electorate strengthens incentives for governments to be responsive this suggests that there is a role both for democratic institutions and the mass media in ensuring that the preferences of citizens are reflected in policy the ideas behind the model are tested on panel data from india we show that public food distribution and calamity relief expenditure are greater controlling for shocks where governments face greater electoral accountability and where newspaper circulation is highest

competition control and spurious covariation a longitudinal analysis of state spending the most basic fact about the american states since world war ii has been their immense growth in activities employment and especially spending yet it is striking to see how many of the articles in the new state policy literature resolutely ignore that phenomenon instead of looking at the central trend which is the upward thrust of spending over time these articles have wrangled interminably over the impact of certain sacrosanct political variables on spending differences across states in one or two slices of time the treatment of interparty competition ipc and party control is an excellent case in point since the early findings by dawson and robinson 1963 and dye 1966 that socioeconomic variables were more powerful than competition and control as forces structuring state policy political scientists have gone back and forth over the hypothesis policy has been reconceptualized in a variety of ways for example as service levels sharkansky 1967 or benefit distribution fry and winters 1970 while competition and control have been measured and remeasured ranney 1971 pfeiffer 1967 hofferbert 1964 assorted variables have been introduced as interacting factors some of which enhance the power of ipc under limited conditions deleon 1973 carmines 1974 and finally researchers have moved to more complicated methodological treatments such as path analysis or nonlinear models tompkins 1975 lewis beck 1977 for several reasons the outcome still has not been very satisfactory first although some political scientists have continued faith in the idea that american politics is preeminently party politics winters 1976 p 629 that faith has not been very well explicated as pulsipher and weatherby observed a theory of political or even party competition is yet to appear 1968 p 1214 even the basic concepts and hypotheses have been charac

pathways of representation a causal analysis of public opinion policy linkages theory altemative theories of the linkage process between mass policy preferences and public policies are tested empirically hypotheses opinion policy linkage may arise because mass preferences drive the policy process elite preferences drive the process or because of a shared preferences reciprocal influence process policy linkage may also be facilitated by higher voter mobilization and party competition methods a multiple equation model of the opinion policy process in the united states is tested with two stage least squares regression results the state policy process is best explained by an opinion sharing reciprocal influence model shared partisanship party competition and voter mobilization enhance the linkage process in theoretically anticipated ways

electoral competition in the american states electoral competition is a concept that has played a central role in much of the state politics literature one commonly used indicator of competition in the states is the ranney index we offer an alternative indicator of competition one based on district level outcomes of state legislative elections after evaluating both indicators in terms of validity and reliability the analysis suggests that the district level indicator is both empirically and intuitively superior as a measure of electoral competition the implications of this finding are discussed

regime shifts in a dynamic term structure model of u s treasury bond yields this article develops and empirically implements an arbitrage free dynamic term structure model with priced factor and regime shift risks the risk factors are assumed to follow a discrete time gaussian process and regime shifts are governed by a discrete time markov process with state dependent transition probabilities this model gives closed form solutions for zero coupon bond prices an analytic representation of the likelihood function for bond yields and a natural decomposition of expected excess returns to components corresponding to regime shift and factor risks using monthly data on u s treasury zero coupon bond yields we show a critical role of priced state dependent regime shift risks in capturing the time variations in expected excess returns and document notable differences in the behaviors of the factor risk component of the expected returns across high and low volatility regimes additionally the state dependence of the regime switching probabilities is shown to capture an interesting asymmetry in the cyclical behavior of interest rates the shapes of the term structure of volatility of bond yield changes are also very different across regimes with the well known hump being largely a low volatility regime phenomenon jel g12 this article develops and empirically implements an arbitrage free dynamic term structure model dtsm with priced factor and regimeshift risks the risk factors are assumed to follow a discrete time gaussian process and regime shifts are governed by a discrete time markov process with state dependent transition probabilities agents are assumed to know both the current state of the economy and the regime they are currently in this leads to regime dependent risk neutral pricing and an equilibrium term structure that reflects the risks of both changes in the state and shifts in regimes

governmental structure trustee selection and public university prices and spending multiple means to similar ends estimate the effects of multiple instruments for exercising political control over public university prices and spending i find that public universities located in states with governmental structures that enhance political control and universities whose trustees are selected by nonacademic stakeholders charge significantly lower prices than universities located in states with decentralized systems

is there a politically optimal level of judicial independence independent courts render current policy more durable by raising the cost of future policy changes but may also engage in policy making of their own this paper asks is there an optimal level of judicial independence from the perspective of incumbent officials in the other branches to answer that question the paper develops a model of strategic institutional choice and tests it on the judicial institutions of the american states consistent with the model s predictions the most independenceenhancing institutions are found where political competition between rival parties is tightest and differences between party platforms are largest

the party of lincoln and the politics of state fair employment practices legislation in the north 1945 1964 from 1945 to 1964 more than a score of northern states passed laws mandating nondiscrimination in employment why did some states pass such fair employment practice fep laws much more slowly than other states this article presents archival and statistical evidence that partisan control of policy making institutions namely republican control of veto points in the legislative process is associated with a substantial reduction in the likelihood that a state would pass fep legislation even when controlling for potentially confounding variables this finding casts doubt on the leading account of the electoral realignment that began in the mid 1960s and culminated in the reagan bush years well before the advent of affirmative action key numbers of gop officeholders allied with organized business and motivated by a free market antiregulatory ideology worked successfully to block the adoption of color blind laws mandating formal racial equality

disentangling patterns of state debt financing we examine the determinants of change in state government indebtedness from 1961 through 1989 using a pooled time series cross sectional analysis the analysis reveals that debt is primarily a function of economic conditions reflecting both the need to borrow and the capacity of states to repay debt however political factors such as culture partisan competition and electoral cycles also affect state debt we also find very weak evidence that tax and expenditure limitations ironically may increase state indebtedness while constitutional debt limitations have no effect upon slowing the growth of state debt

electoral bias and policy choice theory and evidence this paper develops an approach to studying how bias in favor of one party due to the pattern of electoral districting affects policy choice we tie a commonly used measure of electoral bias to the theory of party competition and show how this affects party strategy in theory the usefulness of the approach is illustrated using data on local government in england the results suggest that reducing electoral bias leads parties to moderate their policies

the energy efficiency gap what does it mean abstract as renewed attention has been given by policy makers to energy conservation issues it has frequently been asserted that an energy efficiency gap exists between actual and optimal energy use the critical questions is how to define the optimal level of energy efficiency this paper seeks to disentangle some confusing strands of argument that are frequently brought to bear on this question by identifying the major conceptual issues that determine the set of feasible answers we identify five separate and distinct notions of optimality the economists economic potential the technologists economic potential hypothetical potential the narrow social optimum and the true social optimum each of these has associated with it a corresponding definition of the energy efficiency gap our analysis demonstrates that necessary preconditions for identifying the right measure of the energy efficiency gap include understanding and disentangling market failure and non market failure explanations for the gradual diffusion of energy efficient technologies