Physical capital accumulation in Asia 12: Past trends and future projections

The pace of capital accumulation in East Asia has simply been stunning. In this paper, we investigate sources of this fast accumulation and make projections for the future. We estimate a “convergence” equation for physical capital per capita, which is derived from an open economy growth model, using a pooled cross-country, across-decade sample of the entire world. We also conduct projections for the next two decades. We find that an economy with a low level of capital stock per capita tends to experience faster accumulation subsequently. Asian economies have certainly benefited from this “convergence effect”. But on the other hand, other factors such as a low rule of law score and high investment goods prices have worked against them. Our projection shows that, if those economies wish to maintain their current pace of fast capital accumulation, the keys would be to reduce distortions in the domestic market and to improve the quality of institutions.     

Public Capital and Economic Growth: A Convergence Approach

This paper estimates dynamic effects of public capital on output per capita. Based on an open economy growth model, I derive a version of the income convergence equation augmented with public capital. This equation is estimated using panel data of United States and Japanese regions. Sensible results are obtained when public capital is disaggregated into components. In both countries, the infrastructure component of public capital turns out to have significantly positive effects. The implied elasticity of output with respect to infrastructure is somewhere around 0.1 to 0.15. This suggests a modest contribution of infrastructure to postwar growth of the two countries.     

Invoicing currency and the optimal basket peg for East Asia: Analysis using a new open economy macroeconomic model

An important characteristic of trade in Asia is that the US dollar is the dominant invoicing currency. This fact might have a consequence on the region's choice of the currency regime. To investigate this possibility, I develop a three country “new open economy macroeconomics” model that consists of East Asia, Japan, and the US. Assuming that East Asia pegs its currency to a basket of the other two's currencies, the optimal basket weights are derived numerically. It is shown that the weights under a realistic invoicing pattern are drastically different from those in the textbook case of “producer currency pricing.” J. Japanese Int. Economies 20 (4) (2006) 569–589.     

A Pass‐Through Revival

It has been found that the pass‐through of the exchange rate and import prices to domestic prices has weakened over time. The most recent research, however, shows that this trend may have been reversed. Recent studies have applied various time series methods to the Japanese data, and estimated responses of domestic prices to the exchange rate and import prices in different time periods. Those studies have found signs that pass‐through has made an impressive comeback since the early 2000s. This paper reviews the most recent evidence and discusses its policy implications. I argue that the exchange rate has likely regained its status as an important transmission mechanism of monetary policy to domestic prices.     

Is There a Trade-Off between COVID-19 Control and Economic Activity? Implications from the Phillips Curve Debate

In this paper, we argue that the roles of public policies concerning COVID-19 can be better understood in light of the past discussions on the Great Inflation of the 1970s and the 1980s. Like the Phillips Curve in macroeconomics, the pandemic presents a trade-off between economic activities and something undesirable, which is, in this case, infection. Like the Phillips Curve, this apparent output-infection trade-off is an elusive one and it is lost in the long run. Containing infections calls for decisive policy action. This paper shows that we could design a reaction function, which sets the level of economic activity as a function of the state of infection, in such a way that the possibility of an infection explosion would be eliminated. Our empirical analysis suggests that Tokyo, New York, and London since September 2020 do not satisfy this desirable property.