Law and Economic Change in Traditional China: A Comparative Perspective

This article offers a critical review of recent literature on Chinese legal tradition and argues that some subtle but fundamental differences between the Western and Chinese legal traditions are highly relevant to our explanation of the economic divergence in the modern era. By elucidating the fundamental feature of traditional Chinese legal system within the framework of a disciplinary mode of administrative justice, this article highlights the contrasting growth patterns of legal professions and legal knowledge in China and Western Europe that would ultimately affect property rights, contract enforcement and ultimately long-term growth trajectories. The paper concludes with some preliminary analysis on the inter-linkages between the historical evolution of political institution and legal regimes.

Discovering Chinese economic history from footnotes : the living tale of a private merchant archive (1800-1850)

This article recounts our unique encounter –through the last seven years of our research - with the Tong Taisheng (统泰升) merchant account books in the Ninjing county of Northern China in 1800-1850. By tracing the personal history of the original owner or donor, we address a large historiographical and epistemological issue behind the current Great Divergence debate on why Industrial Revolution occurred in England but not in China. Our article showcases how the development of political ideology and academic discipline in the modern era impacts our understanding of historical statistics and realities of the early modern era, a critical issue largely neglected in the current Great Divergence debate

Concavity analysis of the tangent method

The tangent method has recently been devised by Colomo and Sportiello (arXiv:1605.01388 [math-ph]) as an efficient way to determine the shape of arctic curves. Largely conjectural, it has been tested successfully in a variety of models. However no proof and no general geometric insight have been given so far, either to show its validity or to allow for an understanding of why the method actually works. In this paper, we propose a universal framework which accounts for the tangency part of the tangent method, whenever a formulation in terms of directed lattice paths is available. Our analysis shows that the key factor responsible for the tangency property is the concavity of the entropy (also called the Lagrangean function) of long random lattice paths. We extend the proof of the tangency to $q$-deformed paths.Comment: published version, 22 page

Spatially Directional Predictive Coding for Block-based Compressive Sensing of Natural Images

A novel coding strategy for block-based compressive sens-ing named spatially directional predictive coding (SDPC) is proposed, which efficiently utilizes the intrinsic spatial cor-relation of natural images. At the encoder, for each block of compressive sensing (CS) measurements, the optimal pre-diction is selected from a set of prediction candidates that are generated by four designed directional predictive modes. Then, the resulting residual is processed by scalar quantiza-tion (SQ). At the decoder, the same prediction is added onto the de-quantized residuals to produce the quantized CS measurements, which is exploited for CS reconstruction. Experimental results substantiate significant improvements achieved by SDPC-plus-SQ in rate distortion performance as compared with SQ alone and DPCM-plus-SQ.Comment: 5 pages, 3 tables, 3 figures, published at IEEE International Conference on Image Processing (ICIP) 2013 Code Avaiable: http://idm.pku.edu.cn/staff/zhangjian/SDPC

Real GDP in Pre-War East Asia: A 1934-36 Benchmark Purchasing Power Parity Comparison with the U.S.

This article provides estimates of purchasing power parity (PPP) converters for expenditure side GDP of Japan/China and Japan/U.S through a detailed matching of prices for more than 50 types of goods and services in private consumption and about 20 items or sectors for investment and government expenditure. Based on our finding and linking with the earlier studies on the relative price levels of Taiwan and Korea, we derive the mid-1930s benchmark PPP adjusted per capita income of Japan, China, Taiwan and Korea at 31%, 10%, 23%, and 12% of the U.S. level respectively for the mid-1930s. These estimates corrected the consistent downward bias in East Asian income levels based on market exchange rate conversions. While confirming Angus Maddison's estimates for China and Taiwan based on the 1990 benchmark back-projection method, they do point to a 23% and 85% overestimate in his comparable figures for Japan and Korea respectively for the mid-1930s period. This article develops a preliminary theoretical and empirical framework to demonstrate the possible source of the biases in the back-projection method. We briefly discuss the implications of our findings on the initial conditions and long-term growth dynamics in East Asia and beyond.