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This paper provides a macroeconomic explanation for the United States suffering from a health disadvantage relative to other rich European countries despite spending much more on health care. We introduce health capital à la Grossman in the neoclassical growth model and assume that its rate of depreciation increases with labor supply. The steady-state share of GDP devoted to health expenditure increases with labor supply, but the relationship between the health capital stock and the number of hours worked is hump-shaped, meaning that there is a country-specific health-maximizing level. We calibrate the model to the United States and assess how much of this “American Health Puzzle” can be explained by the greater number of hours Americans work. Higher labor supply in the US accounts for 2 to 3 percentage points in extra health expenditure as a share of GDP and between 10% and one-third of the American health disadvantage. [ABSTRACT FROM AUTHOR]

Why has the structural bonus been so small during China's post-reform era? This article explains the puzzle by exploiting the heterogeneity in structural-change patterns across Chinese provinces. Using an original database covering production and factor inputs in 8 sectors and 31 provinces over 1993–2016, I show only those provinces where labour was reallocated from agriculture to manufacturing and services benefited from a structural bonus on labour productivity growth. In the other provinces, this structural-change effect was minimal or negative. Regarding the structural-change effect on total factor productivity (TFP) growth, I find both labour and capital reallocation played a limited role. Labour reallocation has little potential in boosting aggregate TFP growth, as marginal labour returns are similar across sectors. Capital reallocation has a far greater potential but remains restrained, suggesting substantial reallocation frictions. China's TFP growth is mostly explained by within-sector technological progress, which has been dissipating since 2008, leading to declining TFP growth. [ABSTRACT FROM AUTHOR]

The rapid development of the digital economy has highlighted the crucial role of data in economic growth. This study investigates the impact of two types of innovation on long-term growth by incorporating data into a model of creative destruction and knowledge accumulation. Unlike traditional factors, data exhibit nonrivalry between the two research and development (R&D) sectors, thereby influencing the growth rate of economic outputs simultaneously without interference. Our findings reveal the existence of a balanced growth path (BGP) in both the decentralized economy and the social planner's economy. In horizontal innovation, data can be transformed into digital knowledge to promote the economic growth [Cong et al. (2021)]. In addition to horizontal innovation, the utilization of data in vertical innovation also enhances the success rate of innovation, with a gradual decrease in per capita data usage on the BGP. Moreover, as agents accumulate human capital, the economy achieves higher output levels, effectively addressing consumer privacy concerns. However, along the transitional path, insufficient data provision by both R&D sectors leads to lower economic growth rates or more intense economic fluctuations, necessitating policy interventions. [ABSTRACT FROM AUTHOR]

This paper studies research and development (R &D) for product innovation of firms faced with "product life cycles." We represent the concept of product life cycles with bounded revenue and profit functions and describe R &D for product innovation as an activity to control the "birth rate of a new product" (i.e., the probability of product innovation). We then derive the optimal level of R &D, corresponding to the optimal birth rate of a new product, and show that the growth rate of the firm's expected total revenue converges to the optimal birth rate of a new product in the long run. [ABSTRACT FROM AUTHOR]

This paper develops an overlapping generations model that links a public health system to a pay-as-you-go (PAYG) pension system. It relies on two assumptions. First, the health system directly finances curative health spending on the elderly. Second, public pensions partially depend on health status by introducing a component indexed to society’s average level of old-age disability. Reducing the average disability rate in the economy then lowers pension benefits as the need to finance long-term care services also drops. We study the effects of introducing such a ‘comprehensive’ Social Security system on individual decisions, capital accumulation, and welfare. We first show that health investments can boost savings and capital accumulation under certain conditions. Second, if individuals are sufficiently concerned with their health when old, it is optimal to introduce a health-dependent pension system, as this will raise social welfare compared to a system where pensions are not tied to the society’s average level of old-age disability. Our analysis thus highlights an important policy recommendation: making PAYG pension schemes partially health-dependent can be beneficial to society. [ABSTRACT FROM AUTHOR]

This study presents a model of North–South trade and development and investigates the growth rates of two countries under a trade pattern that the North specializes in investment goods while the South specializes in consumption goods. Many studies on North–South trade conclude that both countries' growth rates are equalized in the long run. Conversely, we show that if the ‘comparative advantage’ is explicitly considered, both countries' growth rates are not equalized in some cases and, hence, the South cannot catch up with the North even in the long run. Unlike many previous studies, we close the model by fixing each country's income distribution and making the price and quantity variables interdependent. Our results show that the growth rates of both countries are equalized in the long run if their trade patterns are fixed, irrespective of their comparative advantages, whereas their growth rates are not equalized in some cases if their trade patterns are determined by the comparative advantage principle. [ABSTRACT FROM AUTHOR]

This article presents a multiproduct model of a non-stationary Gale-type economy with technology convergent to a certain limit technology, in which changes in the production technology (the dynamics of Gale production spaces) are governed by the size of investments. Thus, this model differs from the vast majority of Gale-type models considered in mathematical economy. With this assumption, the so-called “very strong” version of the multilane production turnpike theorem in the Gale economy with investments is proved. According to the theorem, if the optimal growth process in such an economy reaches the multilane turnpike, it remains on it from then on, with the possible exception of the last period of the economic horizon being analysed.

I develop a dynamic model of consumption variety in status goods by introducing a realistic aspect that is new in the existing literature—that a good will not carry status appeal unless it is advertised. As advertisements will divert resources from new product research, growth in new products will be reduced. However, status-good advertisements also enhance distinctiveness of a good and increase a firm's profit. This will motivate more researches. With the two effects offsetting each other, the original market bias in a standard product-development model—insufficient research due to a general knowledge spillover—cannot be overcome. While introducing advertising into models of this kind does not reverse the original welfare implication of suboptimal growth, this makes available a new and better intervention option—taxing advertisements. This tax is superior to consumption tax, the conventional solution to inefficient status competition, as consumption tax is found to be ineffective in the present model. It is also superior to research subsidies, the conventional solution to suboptimal growth, as subsidies must be financed and is not a self-sufficient policy. [ABSTRACT FROM AUTHOR]

This study examines the changes in the persistence and seasonality inherent in the Croatian tourism sector in light of the onset of the COVID-19 pandemic. First, we differentiate between the changes in the persistence and seasonal behavior with respect to domestic and foreign tourist arrivals and overnight stays. Second, with nearly 90% of the Croatian tourism sector tied to the seven counties along the Adriatic coast we investigate the differential regional impact on persistence and seasonal behavior. Our results indicate the disruption was much more prominent for foreign tourist arrivals and overnight stays relative to domestic tourist arrivals and overnight stays with respect to the increased persistence associated with the onset of the pandemic along with the seasonal autoregressive component reduced considerably. [ABSTRACT FROM AUTHOR]

In this study we evaluate a national economic model using a system dynamics approach. We use a set of macroeconomic data for a transition economy to validate the model behaviour in the past, and then simulate the alternative paths of key macroeconomic variables. Instead of studying only a fraction of the economy, or using simple and abstract models, we build a large-scale national economic model. As the study is based on system dynamics information feedback, it provides additional insights about the macroeconomic effects of the economic policy, making it a valuable tool for economic policy analysis. Such insights are instrumental for understanding the total effects of economic policies and their full economic consequences. To demonstrate this, we have simulated one actual economic policy intervention and its alternative scenario. [ABSTRACT FROM AUTHOR]

By analyzing Mexico's productive structure in the 1980s and 2013, this paper explores whether promoting the domestic market may complement the dynamism of the external sector and achieve a process of sustained growth and development for an economy highly integrated into the international market. The methodology applied is an extension of the input-output model and network analysis; in particular, the concept of vertically integrated sectors is a major feature to reach conclusions. The results show that stimulating the domestic market can be a complementary strategy for promoting the export sector to boost growth and economic development. [ABSTRACT FROM AUTHOR]

In an empirical, dynamic simultaneous equation model (DSEM) for Brazil with 22 equations and variables, we show that foreign income is a driver of economic growth besides semi-endogenous technical change. With a balance-of-payments constraint and endogenous terms of trade, the major mechanism is (i) world GDP driving exports, (ii) exports paying for imported capital goods, which (iii) enter a production function increasing output and the foreign-debt/GDP ratio and (iv) increase the endogenous labour force, and (v) slightly reduce human capital growth. The savings gap drives foreign debt and interest rates up and make the model unstable. Permanent increases of human capital increase the R&D/GDP ratio, labour-augmenting productivity, and GDP. A policy to increase the R&D/GDP ratio leads to more human capital, labour productivity and GDP levels. Both knowledge policies reduce the debt/GDP ratio. A lasting shock on the terms of trade reveals that there is no Harberger–Laursen–Metzler effect. The results hold in the presence of endogenous terms of trade, foreign debt, net foreign income, and net current transfers from abroad, and non-Walrasian (dis-)equilibrium variables: inflation and changing inventories for the goods market, and unemployment in the labour market. Policy should strengthen the weak link from R&D (research and development) to technical change and make education more attractive. [ABSTRACT FROM AUTHOR]