Productivity growth in east Asia: a reappraisal

In recent years there has been considerable disagreement over the extent to which productivity growth has accounted for the success of the east Asian economies. Empirical evidence, based on forms of growth accounting or direct estimation of a production function, is inconclusive so that the debate appears to be at a stalemate. This article applies an alternative approach, using the Malmquist productivity indices, to investigate the contribution of productivity to the longer term growth. The results support the view that over the longer term, the east Asian economies were input driven but interesting differences arise between countries when shorter periods are analysed.     

Innovation and Market Structure in the Manufacturing Sector: An Application of Linear Feedback Models*

In recent years, there has been a renewed interest in the relationship between market structure and innovation activities at an industry level. The paper examines the relationship between these for the manufacturing sector in a sample of 33 countries. It applies a recently developed method, based on linear feedback models, and uses cross‐country time‐series data. Despite the relatively small number of observations, the results indicate that domestic competition, external market share, and research and development have a positive effect on innovation activities. The results also suggest that the introduction of the foreign competition may have an initial positive effect on innovation activities, but over time this becomes dissipated.     

Estimating the Markov-switching almost ideal demand systems: a Bayesian approach

Allias and Nichèle (Eur Rev Agric Econ, 34(4):517–538, 2007) proposed a Markov-switching almost ideal demand system (MS-AIDS) model by extending the idea of Hamilton (Econometrica, 57(2):357–384, 1989). In this paper, we propose a Bayesian estimation for MS-AIDS model and illustrate applicability of our proposed method. We then run two sets of simulation studies to confirm the validity of the proposed method. In the empirical study on the Japanese meat market, our Bayesian estimation improves the MSEs for all meat products over the ML estimation, while successfully capturing the regime shifts of meat demand coinciding with the timing of bovine spongiform encephalopathy cases in Japan and US.     

A polyhedral approximation approach to concave numerical dynamic programming

This paper introduces a numerical method for solving concave continuous state dynamic programming problems which is based on a pair of polyhedral approximations of concave functions. The method is globally convergent and produces computable upper and lower bounds on the value function which can in theory be made arbitrarily tight. This is true regardless of the pattern of binding constraints, the smoothness of model primitives, and the dimensionality and rectangularity of the state space. We illustrate the method's performance using an optimal firm management problem subject to credit constraints and partial investment irreversibilities.     

Hepatocellular carcinoma: Prospective assessments of the T-factor with CT,US, and MR imaging

The capabilities of computed tomography (CT), ultrasonography (US), and magnetic resonance (MR) imaging were studied in order to determine the role of each of these noninvasive examinations for estimating the T-factor of hepatocellular carcinomas (HCCs). Fifty-one patients with surgically proven HCCs received CT (50 patients), US (46 patients), and MR (44 patients). The images of CT, US, and MR were prospectively evaluated for main tumor size, intrahepatic metastases, and vascular invasion, which compose the T-factor of HCC, and compared to pathological results. The sizes of the main tumor were estimated correctly by all examinations. For estimating intrahepatic metastases, US (74%) and MR (73%) were superior to CT (65%). For estimating portal invasion, CT (79%) was superior to US (70%) and MR (66%), because CT could demonstrate the segmental staining caused by portal invasion. The estimates of hepatic venous invasion were difficult during any of the examinations. We conclude that presurgical evaluations of the T-factor require the use of US and CT or MR and CT.     

Commuter arrivals and optimal service in mass transit: Does queuing behavior at transit stops matter?

This paper considers whether the optimal (second-best) mass-transit policy under a uniform-fare constraint is affected by passengers' queuing disciplines, by comparing the first-in-first-out (FIFO) and the random-access queuing. We analyze the problem by extending the model of mass-transit in Kraus and Yoshida (JUE(2002)) to the case of random-access queuing. The model involves the optimal number and capacity of trains as well as pricing. It is shown that, when the shadow value of a unit of waiting time exceeds that of a unit time of being late, the passengers' queuing discipline does not have any effect on the optimal (second-best) mass-transit policy including the number of trains and runs, scheduling, and pricing. If in turn, the shadow value of a unit of waiting time is smaller than that of being late, then aggregate travel costs are lower with random-access queuing than with FIFO, due to randomization of passengers' positions in a mass.     

The Determinants of Latent Entrepreneurship in Japan

This paper examines regional characteristics affecting the latent entrepreneurship in Japan, focusing on regional macroeconomic indicators, existing density of establishments and human capital, and business start-up assistance programs by local governments. We define two types of people having the latent entrepreneurship as follows (1) persons merely wishing to be a self-employed worker, and (2) persons preparing to be a self-employed worker out of the former definition. Total cash earnings and the unemployment rate, which are the macro economic indicators, had positive effects on latent entrepreneurship in Japan. Judging from the significance of their estimations, the latent entrepreneurship is explained by the “Push hypothesis”. If we examine the problem more closely, it is necessary for us to identify government assistance programs which make the latent entrepreneurs more self-employment.     

Recent Political Change in Myanmar and Its Impact on her Economic Growth

The present study estimates the causal effect of a process of political change, namely, a recent constitutional referendum, on economic growth in Myanmar. To analyze the impact of this process, this study compares the trajectories of actual and counterfactual GDP per capita after the referendum using the synthetic control method. We calculate the counterfactual GDP per capita using country‐level panel data from 2002 to 2013, with Myanmar as the treated country and a set of developing countries in East and South Asia, the Pacific and sub‐Saharan Africa as the control group. The results of the synthetic analysis suggest that the recent process of political change in Myanmar had a positive and significant effect on GDP per capita but not on per capita foreign direct investment or trade.     

Japanese-airport benchmarking with the DEA and endogenous-weight TFP methods: testing the criticism of overinvestment in Japanese regional airports

As aviation demand increased constantly along with the rapid economic growth in Japan and surrounding East Asian countries over the last several decades, Japanese government promoted airport construction since 1950s. However, the recent change in the economic background has made rise to a criticism toward the inefficient public investment, especially the transportation infrastructure. In this criticism, it has been argued that some of the small regional airports are indeed suffering the issue of overinvestment. Thus this paper attempts to verify the validity of such criticism by statistically measuring the efficiency of Japanese airports and conducting comparative analysis. For this objective, the paper employs two distinct methods namely data-envelopment analysis and endogenous-weight TFP methods. The results from these methods consistently indicates that the efficiency of regional airports in mainland Japan are lower than others, and that those airports constructed in the 1990s are relatively inefficient.