SOCIAL COMPARISON AND SUBJECTIVE WELL‐BEING: DOES THE HEALTH OF OTHERS MATTER?

The importance of social comparison in shaping individual utility has been widely documented by subjective well‐being literature. So far, income and unemployment have been the main dimensions considered in social comparison. This paper aims to investigate whether subjective well‐being is influenced by inter‐personal comparison with respect to health. Thus, we study the effects of the health of others and relative health hypotheses on two measures of subjective well‐being: happiness and subjective health. Using data from the Italian Health Conditions survey, we show that a high incidence of chronic conditions and disability among reference groups negatively affects both happiness and subjective health. Such effects are stronger among people in the same condition. These results, robust to different econometric specifications and estimation techniques, suggest the presence of some sympathy in individual preferences with respect to health and reveal that other people's health status serves as a benchmark to assess one's own health condition.     

Nutrient consumption and household income in rural Mexico

We estimate the income elasticity for a variety of macro- and micronutrients using a sample of poor rural households in Mexico. The nutrient-income elasticity is estimated using both parametric and semiparametric methods. A special focus is placed on the nonlinearity of the relationship between nutrient intake and income and on measurement error and endogeneity issues. One major finding is that income elasticity for calories is close to zero when we control for measurement error issues. For some nutrients, namely fats, vitamin A and C, calcium, and heme iron, we find a sizeable positive income elasticity robust to the choice of the estimator and percentiles at which it is evaluated. These nutrients are also those for which we find the largest deficiency in our sample. In addition, we find that for the poorest households in our sample, the deficiency of total energy, protein, and zinc is not accompanied by a positive income elasticity.     

Compatibility and Bundling with Generalist and Specialist Firms

I analyze compatibility and bundling choices when one generalist firm offering both components of a system competes against two specialist firms each supplying one component only (but not the same one). I show that the generalist firm may have an incentive to choose incompatibility or engage in pure bundling when one component is less differentiated than the other. In this case, the system is more differentiated than the relatively undifferentiated component, and so under incompatibility the specialist firm that produces the undifferentiated component will relax price competition. This may result in higher profits for some of the competing firms.     

On the influence of US monetary policy on crude oil price volatility

Forecasting oil prices is not straightforward, such that it is convenient to build a confidence interval around the forecasted prices. To this end, the principal ingredient for obtaining a reliable crude oil confidence interval is its volatility. Moreover, accurate crude oil volatility estimation has fundamental implications in terms of risk management, asset pricing and portfolio handling. Generally, current studies consider volatility models based on lagged crude oil price realizations and, at most, one additional macroeconomic variable as crude oil determinant. This paper aims to fill this gap, jointly considering not only traditional crude oil driving forces, such as the aggregate demand and oil supply, but also the monetary policy rate. Thus, this work aims to contribute to the debate concerning the potential impact of (lagged) US monetary policy as well as the other crude oil future price (COFP) determinants on daily COFP volatility. By means of the recently proposed generalized autoregressive conditional heteroskedasticity mixed data sampling model, different proxies of the US monetary policy alongside US industrial production (proxy of the US aggregate demand) and oil supply are included in the COFP volatility equation. Strong evidence that an expansionary (restrictive) variation in monetary policy anticipates a positive (negative) variation in COFP volatility is found. We also find that a negative (positive) variation of industrial production increases (decreases) COFP volatility. This means that volatility behaves counter-cyclically, according to the literature. Furthermore, the out-of-sample forecasting procedure shows that including these additional macroeconomic variables generally improves the forecasting performance.     

Surface movement ground control by means of a GPS–GIS system

Despite the traffic increases at the World's airports, little works have been done on methodologies to improve vehicles and airplanes ground control. This may be leading to reduced safety. Here an integrated system is developed to help guarantee suitable separations of land vehicles and airplanes moving on the airport ground area It can also addressed issues of the optimal use of taxi and runways. The system is composed of global positioning systems hardware, checks on the position of land vehicles and airplanes on the ground in real time, and special-purpose geographical information systems software for the tracking of land vehicles and airplanes within different planning operations.     

Postponing retirement: the political effect of aging

Conventional economic wisdom suggests that because of the aging process, social security systems will have to be retrenched. In particular, retirement age will have to be largely increased. Yet, is this policy measure feasible in OECD countries? Since the answer belongs mainly to the realm of politics, I evaluate the political feasibility of postponing retirement under aging in France, Italy, the UK, and the US. Simulations for the year 2050 steady state demographic, economic and political scenario suggest that retirement age will be postponed in all countries, while the social security contribution rate will rise in all countries, but Italy. The political support for increasing the retirement age stems mainly from the negative income effect induced by aging, which reduces the profitability of the existing social security system, and thus the individuals' net social security wealth.     

Investing for the old age: pensions, children and savings

In the last century, most countries have experienced both an increase in pension spending and a decline in fertility. We argue that the interplay of pension generosity and development of capital markets is crucial to understand fertility decisions. Since children have traditionally represented for parents a form of retirement saving, particularly in economies with limited or nonexistent capital markets, an exogenous increase of pension spending provides a saving technology alternative to children, thus relaxing financial (saving) constraints and reducing fertility. We build a simple two-period OLG model to show that an increase in pensions is associated with a larger decrease in fertility in countries in which individuals have less access to financial markets. Cross-country regression analysis supports our result: an interaction between various measures of pension generosity and a proxy for the development of financial markets consistently enters the regressions positively and significantly, suggesting that in economies with limited financial markets, children represent a (if not the only) way for parents to save for old age, and that increases in pensions amount effectively to relaxing these constraints.     

Using a dual system of reasoning in small businesses: Entrepreneurial decisions and subjective risk intelligence

This study aims at introducing subjective risk intelligence (SRI) in the context of small businesses to analyze how both rationality and intuition may influence the entrepreneurial decision-making process, particularly in affecting firms’ financial equilibrium.

SRI aggregates four dimensions: two positive attitudes (imaginative capability and problem-solving self-efficacy) and two detrimental ones (emotional stress vulnerability and negative attitude towards uncertainty). In particular, we argue that imaginative capability and emotional stress vulnerability refer to Kahneman’s System 1 (the intuitive), while problem-solving self-efficacy and negative attitude towards uncertainty appertain to System 2 (the rational).

We conducted an empirical investigation collecting data from an ad hoc survey administered to owners and managers of small businesses and their balance sheets over 2013–2017. After testing the proposed constructs’ reliability, we tested the influence that both Systems 1 and 2 have on SMEs’ financial structure through a pooled OLS regression estimator.

Results show that the intuitive and the rational components of risk intelligence affect entrepreneurs’ decision-making differently. The rational component seems to stimulate the entrepreneurial orientation to risk tolerance. The intuitive component limits the entrepreneurial propensity to take financial risks due to the desire for stability attached to this cognitive process. Accordingly, we highlight the importance of enhancing a balance between the two systems of thinking. Practical implications suggest that entrepreneurs with a dominant attitude towards problem-solving self-efficacy, or a positive attitude towards uncertainty, should invest in developing imaginative capabilities or emotional control, and vice versa.

     

Environmental,Social and Governance investing: Does rating matter?

In the last decade, the demand for sustainable and social investments has improved. The mutual funds industry has responded to market needs by offering a number of investment products focused on Environmental, Social and Governance (ESG) companies. The aim of this article is to understand if an ESG score can actually be considered a valid criterion that portfolio managers could adopt, along with traditional risk–return optimisation, in selecting asset portfolios. The paper analyses the link between the performance and the ESG score of different sectoral portfolios (one for each sector of the Global Industry Classification Standard), entirely composed of ESG assets, in the search for a clear and strong positive correlation that could suggest an overall advantage to focus on an ex ante choice of assets with high ESG scores.