Estimation of models with grouped and ungrouped data by means of “2SLS”

This paper deals with a special case of estimation with grouped data, where the dependent variable is only available for groups, whereas the endogenous regressor(s) is available at the individual level. By estimating the first stage using the available individual data, and then estimating the second stage at the aggregate level, it might be possible to gain efficiency relative to the OLS and 2SLS estimators that use only grouped data. We term this the mixed-2SLS estimator (M2SLS). The M2SLS estimator is consistent and asymptotically normal. We also provide a test of efficiency of M2SLS relative to OLS and “2SLS” estimators.     

FREE VERSUS SECOND‐BEST ENTRY IN COURNOT OLIGOPOLIES WITH FIRM‐SPECIFIC NETWORKS

This paper endogenizes the number of firms in an industry with positive network effects, complete incompatibility, and firms that compete in quantity. To this end, we compare two possibilities: free entry and second‐best number of firms (the one that maximizes social welfare). We show that with business‐stealing competition, free entry yields, in general, more firms than the socially optimal solution. In addition, we find that by the nature of the industry with firm‐specific networks, total production may be greater or lower under free entry than with a regulator; moreover, some industries attain their maximum social welfare with a monopoly.     

Capital expenditures and firm performance: evidence from a cross‐sectional analysis of stock returns

Using a simple two‐period model of investment, we show that there should be a nonlinear relation between a firm's investment‐to‐capital ratio and its subsequent stock returns. This prediction finds substantial empirical support. The evidence indicates that the slope of the investment function is negative at low investment levels, close to zero at intermediate investment levels and negative at high investment levels. Our results, which are robust to the use of narrowly‐ and broadly‐defined measures of capital investment, pose a challenge to the hypothesis that the negative cross‐sectional correlation between investment and stock returns is attributable to some sort of overinvestment phenomenon.     

On Environmental Regulation of Oligopoly Markets: Emission versus Performance Standards

By specializing Montero’s (J Environ Econ Manag 44:23–44, 2002) model of environmental regulation under Cournot competition to an oligopoly with linear demand and quadratic abatement costs, we extend his comparison of firms incentives to invest in R&D under emission and performance standards by solving for a closed form solution of the underlying two-stage game. This allows for a full comparison of the two instruments in terms of their resulting propensity for R&D and equilibrium industry output. In addition, we incorporate an equilibrium welfare analysis. Finally, we investigate a three-stage game wherein a welfare-maximizing regulator sets a socially optimal emission cap under each policy instrument. For the latter game, while closed-form solutions for the subgame-perfect equilibrium are not possible, we establish numerically that the resulting welfare is always larger under a performance standard.     

Relevance of corruption on the effect of public health expenditure and taxation on economic growth

We investigate whether corruption distorts the positive effect of public health expenditure and taxation on growth through panel data analysis of 75 developing countries for the period from 1995 to 2014. The findings indicate that, although both public health expenditure and taxation can increase economic growth, in countries with more corrupt governments this effect is reduced.     

Innovativeness along the Business Cycle: The Case of Uruguay

ABSTRACT

This article analyzes the dynamics of knowledge-capital accumulation along the different stages of the business cycle within the benchmark proposed by Crépon, Duguet, and Mairesse (1998 Crépon, B., Duguet, E. &; Mairesse, J. (1998). Research, innovation, and productivity: An econometric analysis at the firm level [Working Paper n° W6696]. Cambridge, MA: NBER. Retrieved from www.nber.org/papers/w6696[Crossref] , [Google Scholar]) using a balanced panel of Uruguayan firms. Findings reveal that the intensity of innovation evolves procyclically, while the propensity of innovation and the degree of novelty embedded in innovations follow a countercyclical path. They also show that product innovations during economic recessions are only pursued by companies that are able to divert their sales to world markets; otherwise, they tend to innovate in processes. Results further suggest that productivity gains driven by knowledge-capital accumulation are magnified by systematically engaging in innovation activities.     

High skills,high growth: Is tourism an exception?

Despite the emphasis placed by growth models on technological progress, recent empirical evidence shows that tourism, a sector widely regarded as low-skill/low-tech and one of the fastest growing industries in the world, may offer a favorable strategy for growth. In addition, in this tourism-led growth literature it is not clear whether human capital plays a role. Using a panel of 72 countries (1980–2005) this study shed new light on the effect of tourism and human capital for economic growth. While our results confirm that the tourism sector indicator is always positive and significant in growth regressions they also show that increased education contributes to growth and that the role of the tourism sector is significantly larger in countries with higher aggregate levels of human capital. Our main results are robust to the inclusion of additional variables, the use of alternative estimators in the regression analysis and the use of different sub-samples. Overall, our results suggest that an increase in human capital endowments is always beneficial, even when the development strategy focuses on the expansion of a (successful) unskilled sector.     

Regional integration and technology diffusion: The case of Uruguay

We examine the impact of trade-related R&D spillovers from the country's partners in the MERCOSUR as well as from the European Union and NAFTA blocs and the rest of the world on total factor productivity for the Uruguayan case at the industry level, for the period 1988–95. Furthermore, we analyse the impact of domestic R&D in Uruguay. There is an evidence of trade-related technology diffusion from MERCOSUR partners to Uruguay, although domestic R&D has apositive impact on productivity. Thus, policies aimed to promote domestic R&D and decreasing trade barriers could enhance Uruguayan manufacturing productivity.     

Measurement of Economic Result in Public Organizations： A Departmental Analysis

The aim of this work is to demonstrate how public university hospital （UH） managers can improve the process of decision-making by using the measurement of economic value added to the society （EVAS） generated by these organizations. Thus, the economic values of the organization and its departments were calculated, according to the theory studied： measurement model of economic result of Slomski （1996）. It was considered the conduction of a case study in a public UH, evaluating its economic performance in a 3-year period. For the interpretation of results, the Data Envelopment Analysis （DEA） which categorized the departments of the hospital studied as efficient or inefficient was used. This study revealed that managers can improve the decision-making process by using the EVAS, since it has been established that this measurement of economic value has sensitivity to identify which of the economic value drivers should be emphasized in the management.