Christian Acosta - Academia.edu (original) (raw)

Papers by Christian Acosta

Proceedings of the 4th Mexican Conference on Human-Computer Interaction - MexIHC '12, 2012

ABSTRACT The purpose of this study is to formulate design guides to create digital games that pro... more ABSTRACT The purpose of this study is to formulate design guides to create digital games that promote significant leisure activities in older adults from Mexico. As a first step towards this goal, seven-hundred and ninety-four older adults up to 60 years old were evaluated. Participants in the study completed a female-male version of an inventory of leisure activities. In this study, "gardening" was the most preferred leisure activity for older women. Digital game design ideas indicate that it is necessary to create virtual settings where older women may perform gardening activities to learn and enjoy the life cycle of different plants and their handling. "Playing with children" is a moderated preferred leisure activity for older men, but suitable for virtual setting design. Here, digital games involving activities related to sports and physical-based activities with mental and geometric skills are suggested. These results support design ideas to develop virtual applications to promote significant leisure activities in older adults.

Contrary to the assumption of perfectly flexible labor markets commonly used in mainstream macroe... more Contrary to the assumption of perfectly flexible labor markets commonly used in mainstream macroeconomic models, in the real world the existence of structural imperfections such as search and trading costs hinder the frictionless functioning of these markets, generally leading to outcomes of Non-Walrasian type with involuntary unemployment and open vacancies in "equilibrium". In this paper we model the existence of labor market frictions into a Keynesian (Disequilibrium) AS-AD framework in the line of Asada, Chen, Chiarella and Flaschel (2006) through a labor search and matching function. By means of dynamic shock simulations, we find that the extent of the labor market rigidity has a great importance for the dynamics not only of employment and output, but also of wage and price inflation, and consequently also for the conduction of monetary policy.

The high degree of persistence in the national inflation differentials of the majority of EMU Mem... more The high degree of persistence in the national inflation differentials of the majority of EMU Member States observed since the introduction of the euro has raised serious concerns among researchers and policy-makers alike. In this paper I review the main theoretical arguments which explain their existence within a monetary union and, by means of econometric methods, analyze their dynamic behavior prior and after the introduction of the euro. Furthermore I investigate, through single-equation GMM and panel TSLS estimations, the empirical evidence for different degrees of correlation between the country-specific business cycles fluctuations and the arise of national inflation differentials with respect to the euro area average. -------

After experiencing the Asian crisis of 1997-98, numerous studies have been under- taken to explor... more After experiencing the Asian crisis of 1997-98, numerous studies have been under- taken to explore the mechanisms of how large currency shocks can trigger a financial crisis and large output loss. Many studies suggested multiple equilibria models to understand the dynamics of currency crisis with subsequent financial crisis and large output loss. Yet most of the popular models disregard wage

Proceedings of the 4th Mexican Conference on Human-Computer Interaction - MexIHC '12, 2012

ABSTRACT The purpose of this study is to formulate design guides to create digital games that pro... more ABSTRACT The purpose of this study is to formulate design guides to create digital games that promote significant leisure activities in older adults from Mexico. As a first step towards this goal, seven-hundred and ninety-four older adults up to 60 years old were evaluated. Participants in the study completed a female-male version of an inventory of leisure activities. In this study, "gardening" was the most preferred leisure activity for older women. Digital game design ideas indicate that it is necessary to create virtual settings where older women may perform gardening activities to learn and enjoy the life cycle of different plants and their handling. "Playing with children" is a moderated preferred leisure activity for older men, but suitable for virtual setting design. Here, digital games involving activities related to sports and physical-based activities with mental and geometric skills are suggested. These results support design ideas to develop virtual applications to promote significant leisure activities in older adults.

Contrary to the assumption of perfectly flexible labor markets commonly used in mainstream macroe... more Contrary to the assumption of perfectly flexible labor markets commonly used in mainstream macroeconomic models, in the real world the existence of structural imperfections such as search and trading costs hinder the frictionless functioning of these markets, generally leading to outcomes of Non-Walrasian type with involuntary unemployment and open vacancies in "equilibrium". In this paper we model the existence of labor market frictions into a Keynesian (Disequilibrium) AS-AD framework in the line of Asada, Chen, Chiarella and Flaschel (2006) through a labor search and matching function. By means of dynamic shock simulations, we find that the extent of the labor market rigidity has a great importance for the dynamics not only of employment and output, but also of wage and price inflation, and consequently also for the conduction of monetary policy.

The high degree of persistence in the national inflation differentials of the majority of EMU Mem... more The high degree of persistence in the national inflation differentials of the majority of EMU Member States observed since the introduction of the euro has raised serious concerns among researchers and policy-makers alike. In this paper I review the main theoretical arguments which explain their existence within a monetary union and, by means of econometric methods, analyze their dynamic behavior prior and after the introduction of the euro. Furthermore I investigate, through single-equation GMM and panel TSLS estimations, the empirical evidence for different degrees of correlation between the country-specific business cycles fluctuations and the arise of national inflation differentials with respect to the euro area average. -------

After experiencing the Asian crisis of 1997-98, numerous studies have been under- taken to explor... more After experiencing the Asian crisis of 1997-98, numerous studies have been under- taken to explore the mechanisms of how large currency shocks can trigger a financial crisis and large output loss. Many studies suggested multiple equilibria models to understand the dynamics of currency crisis with subsequent financial crisis and large output loss. Yet most of the popular models disregard wage