Additivity in bankruptcy problems and in allocation problems

We study the property of additivity in bankruptcy problems and in allocation problems. In bankruptcy problems we use this property to characterize the Talmudic rule proposed by Rabbi Ibn Ezra. Moreover we generalize this rule to every bankruptcy problem. Again, using additivity we characterize the rights egalitarian solution in allocation problems.     

Corporate financing decisions, managerial market timing, and real investment

Both market timing and investment-based theories of corporate financing predict under-performance after firms raise capital, but only market timing predicts that the composition of financing (equity compared with debt) should also forecast returns. In cross-sectional tests, we find that the amount of net financing is more important than its composition in explaining future stock returns. In the time series, investment-based factor models explain abnormal stock performance following a variety of corporate financing events that previous studies link to market timing. At the aggregate level, the amount of new financing is also more important for future market returns than its composition. Overall, our joint tests reveal that measures of real investment are correlated with future returns and measures of managerial market timing are not.     

Wasted Positive Intentions: The Role of Affection and Abundance on Household Food Waste

This qualitative study, grounded theory oriented, identifies familial affection and preference for abundance as major drivers of wasted food in lower-middle income American families. These positive intentions provide an improved understanding of household food waste, a problem with high environmental impact and moral implications. Based on empirical data collected with twenty caregivers via in-depth interviews, observations, and analysis of photos, this study provides novel explanations, such as on how stockpiling comfort foods in abundance – a form of both boosting positive self-emotions and showing affection for kids – can promote more wasted food. Other antecedents identified include multiplicity of choices, convenience, procrastination and unplanned routines. In sum, this research identifies a negative outcome of affection and food abundance in the family context, while providing a theoretically relevant general framework to help understand the food waste phenomenon. Authors suggest increasing the awareness of nutritional gatekeepers through behavioral economics principles.     

Inflation targeting credibility and reputation: The consequences for the interest rate

The measurement of credibility and reputation is fundamental for the analysis of countries which adopted inflation targeting. Under this perspective, the objective of this article is to illustrate which measures of credibility and reputation are most useful in predicting variations of interest rates. Given a specific inflation target, this relationship is valuable for central bankers as well as for private agents trying to predict the central bank's policies. Due to the fact that Brazil represents a potential laboratory experiment in which the effects of an adoption of inflation targeting after more than a half decade can be observed, an analysis through several indices and its relation with the basic interest rate is made. The findings denote that the credibility indices based on reputation represent an alternative in the cases where the series of inflation expectation are not available. Furthermore, the empirical evidence confirms the hypothesis that higher credibility implies lower variations in the interest rate for controlling inflation.     

From scratch to efficiency gains after a financial crisis? A tale of a restructured banking system

We study the efficiency of the Argentine banking system after the 2001–2002 crisis. The financial system had to be restructured from scratch and recovered jointly with the economy, but its productivity and average cost levels have been stagnant since 2007. The analysis includes efficiency frontier estimations for retail banks and a comparison of subsamples for different categories of banks for the period 2005–15. We try to determine whether public banks are more efficient than private ones, whether privatized are more efficient than always private, as well as national versus foreign entities. Our findings show a modest average efficiency of the system and quite similar efficiency rankings for the different groups of banks. On average, public tend to be slightly more cost efficient than private, and national are slightly more efficient than foreign.     

The relative contributions of private information sharing and public information releases to information aggregation

We calculate learning rates when agents are informed through public and private observation of other agents' actions. We characterize the evolution of the distribution of posterior beliefs. If the private learning channel is present, convergence of the distribution of beliefs to the perfect-information limit is exponential at a rate equal to the sum of the mean arrival rate of public information and the mean rate at which individual agents are randomly matched with other agents. If, however, there is no private information sharing, then convergence is exponential at a rate strictly lower than the mean arrival rate of public information.     

Conservation agriculture practices adopted in southern Brazil

The adoption of conservation agriculture (CA) practices are essential for soil and water conservation. In CA, farmers must adopt no-tillage (NT) with crop rotation to maintain a permanent soil cover. In Brazil, mainly in the South region, for CA to be more efficient, practices such as contour farming and agricultural terraces should also be adopted. Thus, the objective of this study is to determine the extent to which NT has been adopted with crop rotation and others soil and water conservation practices. Data from the Agricultural Census in Paraná State, southern Brazil, were used. For the data analysis, the relationship between the level of adoption of NT and the use of crop rotation, contour farming and agricultural terraces was analyzed. A factor and cluster analysis were performed to distinguish regions in terms of soil and water conservation practices. The results show good overall soil and water conservation practices, although heterogeneity has been observed in the adoption practices between regions. Adoption of NT is high in almost all the studied regions. The conservation practice most widely used with NT is contour farming, whereas the least used is agricultural terraces. Conservation practices for runoff control are being neglected by farmers.     

Is Petrobras Options Market Efficient? A Study Using the Delta-Gamma Neutral Strategy

This study aims to verify if the Petrobras options market is efficient in its weak form. For this purpose, this work tries to make profits on a systematic basis through delta-gamma neutral strategies using the firm’s stocks and options. In order to simulate the strategy as it would be used in the real world, we built order books every five minutes considering all buy and sell orders sent for both the underlying asset and its options. We apply the strategy when we observe distortions between implied volatilities extracted from the options. The results show evidence that the Petrobras options market is not efficient, since in 371 day-trade transactions (with an average investment of R$81,000 and an average holding time of one hour and thirteen minutes), 85% of the options strategies were profitable and the average return was 0.49%, which corresponds to more than 1600% of the highest interbank interest rate for the period.     

Does Central Bank Capital Matter for Monetary Policy?

This paper examines empirically whether central bank capital influences the conduct of monetary policy. To this end, we estimate interest rate rules for a sample of 41 countries and employ linear and non-linear regression methods to test if a measure of central bank financial strength can explain deviations of actual interest rates from those predicted by the estimated interest rate (Taylor-like) rules. Our results suggest that central bank capital is indeed a relevant factor behind interest rate policy decisions.     

When Does Economic Growth Reduce Poverty and Strengthen the Middle Class? A State-Level,Sector-Specific Analysis of Peru

Using novel state-level data of Peru from 1997 to 2010, we investigate how growth in different sectors affects poverty rates and the middle class. Our results indicate that only the manufacturing sector seems to robustly decrease poverty. Growth in the service sector emerges as a meaningful predictor of a rising middle class. Allowing for regional differences, we find substantial variation across the 25 Peruvian states with large shifts in magnitudes, signs, and statistical importance. Beyond the immediate implications for Peru, these findings highlight the importance of analyzing the link between economic performance and poverty rates on a subnational level. Policy implications are likely to differ substantially, depending on the source of economic growth and regional particularities.