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"Terdapat bukti substantif pengalaman berbagai negara di dunia bahwa akses pada jasa finansial formal adalah faktor kunci dalam upaya pengentasan kemiskinan. Pemerintah Republik Indonesia telah menempatkan upaya peningkatan mutu dan akses jasa finansial bagi masyarakat Indonesia, sebagai salah satu kebijakan utama dalam pengentasan kemiskinan. Tulisan ini bertujuan untuk membahas dan menganalisa efektivitas badan-badan penyedia jasa finansial di Indonesia, sebagai starting-point dengan memulai analisa efektivitas jasa finansial yang diberikan oleh Bank Perkreditan Rakyat (BPR). Penelitian ini difokuskan kepada BPR di Jawa Barat. Penulis mengevaluasi performa BPR pada 25 kabupaten/kota di Jawa Barat, dengan mengukur tingkat efisiensi teknis melalui metode Stochastic Frontier Approach (SFA). Kota tempat BPR yang memiliki rata-rata in-efisiensi tertinggi adalah Kota Bandung dan Kabupaten dengan in-efisiensi rata-rata BPR-nya yang terendah adalah Kabupaten Ciamis. Peningkatan dalam konsentrasi perbankan di sebuah kabupaten/kota (terindikasi Hirschman-Herfindahl Index) dan peningkatan pendapatan per kapita pada kabupaten/kota tersebut terbukti menurunkan tingkat inefisiensi BPR. Sebagai kesimpulan utama, ditemukan bahwa BPR tidak dapat beroperasi secara efektif pada area yang sangat underdeveloped dan juga tidak dapat beroperasi efektif pada area yang sangat developed.

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There is considerable evidence from around the world to support the idea that access to formal financial services is a key factor towards achieving poverty alleviation. The government of Indonesia has placed high importance on the issue of improved access to financial services and one feels that it would be appropriate to begin the process of analyzing effective financial inclusion initiatives with the existing Bank Perkreditan Rakyat (BPR) system. BPRs have long been an integral part of Indonesia?s financial, economic, and social development. This research is focused on BPRs in West Java. In this research, the writer evaluates BPR performance within twenty-five districts in West Java, by measuring the technical efficiency levels of the BPRs through employing the Stochastic Frontier Approach (SFA). The district that has the highest BPR average inefficiency score is Bandung city and the district with the lowest average BPR inefficiency score is the district of Ciamis. Increases in bank concentration (indicated by the Hirschman-Herfindahl Index) and income per capita are shown to decrease BPR inefficiency levels. Increases in the percentage of the population under the poverty line, the percentage of the labor force with a high school education, the percentage of road length per area, and the amount of bank offices per district, increase the inefficiency levels of BPRs. Overall, it is found that BPRs cannot operate efficiently in areas which are too underdeveloped; neither can they operate efficiently in areas which are too well developed."

"This self-contained monograph presents a new stochastic approach to global optimization problems arising in a variety of disciplines including mathematics, operations research, engineering, and economics. The volume deals with constrained and unconstrained problems and puts a special emphasis on large scale problems. It also introduces a new unified concept for unconstrained, constrained, vector, and stochastic global optimization problems. All methods presented are illustrated by various examples. Practical numerical algorithms are given and analyzed in detail. The topics presented include the randomized curve of steepest descent, the randomized curve of dominated points, the semi-implicit Euler method, the penalty approach, and active set strategies. The optimal decoding of block codes in digital communications is worked out as a case study and shows the potential and high practical relevance of this new approach."

"Penelitian ini bertujuan menganalisis pengaruh preferensi risiko dan Good Corporate Governance terhadap efisiensi biaya bank Syariah yang diukur dengan menggunakan Stochastic Frontier Approach. Sampel penelitian ini adalah 8 Bank Umum Syariah yang terdaftar di Otoritas Jasa Keuangan pada tahun 2010-2014. Hasil pengujian menunjukkan bahwa solvabilitas (Equity to Asset Ratio) dan likuiditas (Cash to Asset Ratio) berpengaruh positif, sedangkan kualitas pembiayaan (Not Performing Financing), Good Corporate Governance, dan jumlah anggota dari masing-masing Dewan Komisaris, Direksi dan Dewan Pengawas Syariah tidak berpengaruh signifikan terhadap efisiensi bank Syariah di Indonesia.

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This research investigates the effects of risk preferences and good corporate governance on cost efficiency of Islamic Banks listed on Indonesia Financial Service Authority during the period 2010-2014. The cost efficiency score is measured by Stochastic Frontier Approach. The result shows that solvability (equity to asset ratio) and liquidity (cash to asset ratio) have positive and significant effects on efficiency of the banks. However, financing quality (not performing financing), good corporate governance, and member of Executive Boards, Non Executive Boards, and Sharia Supervisory Boards have no significant effect on cost efficiency of the banks."

"This book is organized into five chapters. Chapter 1 introduces the topic, offers a timely review of various related areas, and explains why the MR approach is important for conducting supply chain risk analysis. Chapter 2 examines the single period inventory model with the mean-variance and mean-semi-deviation approaches. Extensive discussions on the efficient frontiers are also reported. Chapter 3 explores the infinite horizon multi-period inventory model with a mean-variance approach. Chapter 4 investigates the supply chain coordination problem with a versatile target sales rebate contract and a risk averse retailer possessing the mean-variance optimization objective. Chapter 5 concludes the book and discusses various promising future research directions and extensions. Every chapter can be taken as a self-contained article, and the notation within each chapter is consistently employed."

"Fundamentals of group theory provides a comprehensive account of the basic theory of groups. Both classic and unique topics in the field are covered, such as an historical look at how Galois viewed groups, a discussion of commutator and Sylow subgroups, and a presentation of Birkhoff’s theorem. "