International trade and macroeconomic dynamics with labor market frictions

This paper studies how labor market frictions affect the consequences of trade integration in a two-country dynamic stochastic general equilibrium model with heterogeneous firms and endogenous producer entry. Two main results emerge. First, trade integration is beneficial for welfare by inducing higher productivity, but unemployment can temporarily rise during the transitional adjustment. Labor market rigidities reduce gains from trade, even though they can mitigate short-run employment losses. Second, consistent with the data, the model predicts that stronger trade linkages lead to increased business cycle synchronization. The strength of this effect, however, depends on the labor market characteristics of the integrating partners.     

Capabilities and Functionings: The Role of Social Capital for Accessing New Capabilities

This paper connects two relatively recent streams of research in social science: the capabilities approach and the literature on social capital. The aim is to show that these are strictly connected in a dynamic process linking functionings and capabilities through social capital. The ability to attain new capabilities is enhanced by the possession of social capital; hence investing in its accumulation allows individuals to improve their welfare. Furthermore, new capabilities allow the individual to create new connections and access new networks, accruing his or her stock of social capital and opening the door to the possibility of attaining new capabilities. The paper hypothesizes that a dynamic spiral interweaves social capital, capabilities and functionings.     

Relational capital, profitability and access to credit: evidence from a sample of Italian small firms

This paper investigates the relationship between relational capital and profitability and accessibility to credit of a small firm. The extant literature shows a positive link between relational capital and other variables relevant to a firm’s development but does not cover access to credit. Here, a sample of 136 small firms from Piemonte (north-western Italy) is used. The results show that relational capital eases the access to credit and, in some cases, increases the probability of running positive profits.     

Empirical factor demands and flexible functional forms: a bayesian approach

In this paper we compare classical econometrics, calibration and Bayesian inference in the context of the empirical analysis of factor demands. Our application is based on a popular flexible functional form for the firm's cost function, namely Diewert's Generalized Leontief function, and uses the well-known Berndt and Wood 1947–1971 KLEM data on the US manufacturing sector. We illustrate how the Gibbs sampling methodology can be easily used to calibrate parameter values and elasticities on the basis of previous knowledge from alternative studies on the same data, but with different functional forms. We rely on a system of mixed non-informative diffuse priors for some key parameters and informative tight priors for others. Within the Gibbs sampler, we employ rejection sampling to incorporate parameter restrictions, which are suggested by economic theory but in general rejected by economic data. Our results show that values of those parameters that relate to non-informative priors are almost equal to the standard SUR estimates, whereas differences come out for those parameters to which we have assigned informative priors. Moreover, discrepancies can be appreciated in some crucial parameter estimates obtained with or without rejection sampling.     

Deregulated Wholesale Electricity Prices in Italy: An Empirical Analysis

In this paper we analyze a time series of daily average prices in the Italian electricity market, which started to operate as a Pool in April 2004. Our objective is to model the high degree of autocorrelation and the multiple seasonalities in electricity prices. We use periodic time series models with GARCH disturbances and leptokurtic distributions and compare their performance with more classical ARMA-GARCH processes. The within-year seasonal variation is modelled using the low-frequency components of physical quantities, which are very regular throughout the sample. Our results reveal that much of the variability in the price series is explained by the interactions between deterministic multiple seasonalities. Periodic AR-GARCH models seem to perform quite well in mimicking the features of the stochastic part of the price process.

How can biases affect entrepreneurial decision making? toward a behavioral approach to unicorns

International Entrepreneurship and Management Journal - How can cognitive biases affect the birth and evolution of entrepreneurial ventures? In Entrepreneurial Decision Making (EDM), this lively...     

Optimal Individual Decisions with a Psycho-materialistic Utility Function

This paper proposes a theoretical model aimed at interpreting the outcome of some games. It is often observed that players do not play the Nash equilibrium, when their utility is modelled on their payoff only. However, other models which include psychological variables fail to describe the behaviours observed. Here I propose a utility function which encompasses both monetary and psychological payoffs in such a way that the predictions fit the actual decisions of the players observed in experiments.     

Measuring Representativeness in Different Electoral Systems,Using Italian and Dutch Data

I use power indices to assess the level of representative efficiency of different electoral systems. A representative democracy should “give voice” to as many people’s preferences as possible. This paper evaluates how close a given electoral system is to mirroring the distribution of votes cast in an election. To this goal, both power indices and differences between shares of votes received and seats gained are used. The distribution of power is also compared with both the share of seats of parties in the assembly and the share of votes obtained in the election. The results show that proportional systems and run-off majority are more efficient in terms of representativeness than first-past-the-post methods. Moreover, as the total number of seats in a parliament decreases, representative efficiency tends to increase. The analysis is conducted through simulations using conditional and real (Dutch and Italian) data.     

Cost-effectiveness analysis of mechanical thrombectomy with stent retriever in the treatment of acute ischemic stroke in Italy

Background: Stroke has a significant disease burden in terms of acute and long-term disability in Italy and throughout the world. Endovascular treatments for the management of a stroke event have been coupled in the past years with the possibility to mechanically remove the occlusion by means of specially designed thrombectomy devices, and their exclusive use showed levels of effectiveness in line with those of the existing pharmacological treatments.

Objective: To assess the cost-effectiveness of mechanical thrombectomy (MT) with the Solitaire Revascularization Device (stent retriever) for the treatment of acute ischemic stroke (AIS) in patients with large vessel occlusions (LVOs), comparing MT plus intravenous tissue plasminogen activation (MT plus IV t-PA) vs IV t-PA alone, in Italy.

Methods: A Markov model was used to simulate costs and benefits of MT plus IV t-PA and IV t-PA alone over a 5-year time horizon and considering the perspective of the Italian National Health Service (NHS). Results are reported in terms of Incremental Cost Effectiveness Ratio (ICER). Deterministic and probabilistic sensitivity analyses are carried out in order to test the robustness of the results.

Results: Total costs of MT plus IV t-PA and IV t-PA alone are equal to €31,798 and €34,855, respectively. The MT allows incremental QALYs for 0.77, determining a dominant ICER. The utilities associated to the mRS health states are the parameters with the highest impact on the results. Multiway sensitivity analyses determined a 90% probability of dominance.

Conclusions: MT plus IV t-PA for AIS patients with LVO is cost-effective from year 1 through year 3, and cost-saving from year 4 onward in the Italian context, achieving better results, both in terms of efficacy and in terms of resource consumption.     

The recourse rule,regulatory arbitrage,and the financial crisis

In November 2001, regulators finalized the “Recourse Rule.” The rule lowered risk weights, and therefore commercial bank holding company capital requirements, to 0.2 for holdings of AAA- and AA-rated “private label” securitization tranches, created by investment banks and securitizing commercial bank holding company subsidiaries; risk weights for A-rated holdings equaled 0.5. The rule’s aim was to encourage securitization, but not risk-taking. Regulators indicated that the rule would apply to larger holding companies, without identifying them. Using bank holding companies with subsidiaries that commented on the proposed rule-makings as a treatment variable, average treatment effects from a fully flexible difference-in-differences model indicate that treated banks increased their holdings of the highly rated tranches relative to total assets, while other holding companies, on average, did not. Holding companies with greater highly rated tranche holdings also experienced greater increases in risk after Q1 2008, which suggests that poor performance may have been unanticipated.