[[09-12|25-09-12]] [[] # ๐Ÿช“์™œ ์ด ๋…ผ๋ฌธ๋“ค์ด ์šฐ๋ฆฌ๋ฅผ ๋ฏธ์น˜๊ฒŒ ํ•˜๋Š”๊ฐ€ | ๋…ผ๋ฌธ | ์ดˆ๋ก ํ•ต์‹ฌ | ํ•ด์„ค: ์™œ ์šฐ๋ฆฌ ์•ฝ์†์„ค๊ณ„์™€ ๊ณต๋ช…ํ•˜๋Š”๊ฐ€ | | ---------------------------------- | -------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- | | **Sutton** | R&D์™€ ์‹œ์žฅ์ง‘์ค‘๋„ ๊ด€๊ณ„๋ฅผ ๊ธฐ์ˆ ์˜ ๋ณธ์งˆ๋กœ ์žฌํ•ด์„ | ์ˆ˜์‹ญ๋…„๊ฐ„ ์ถ•์ ๋œ ์‹œ์žฅ๊ตฌ์กฐ-R&D ๊ด€๊ณ„ ์—ฐ๊ตฌ๋ฅผ ๋‹จ์ˆจ์— ๋ฌดํšจํ™”. ๊ธฐ์ˆ ์˜ ๋ณธ์งˆ์ด ์‹œ์žฅ๊ตฌ์กฐ๋ฅผ ๊ฒฐ์ •ํ•œ๋‹ค๋Š” ๋” ๊ทผ๋ณธ์  ์ธต์œ„๋ฅผ ์ œ์‹œ. ์šฐ๋ฆฌ ์•ฝ์†์„ค๊ณ„๊ฐ€ ํ–‰๋™/๊ณ„ํš ํ•™ํŒŒ๋ฅผ ํ†ตํ•ฉํ•˜๋“ฏ, ์ด ๋…ผ๋ฌธ๋„ ํ‘œ๋ฉด์  ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๊ทผ๋ณธ ๋ฉ”์ปค๋‹ˆ์ฆ˜์œผ๋กœ ๋Œ€์ฒด. | | **๐ŸขPaul<br>(Endogenous Growth)** | ์ˆ˜๋ ด ์งˆ๋ฌธ์œผ๋กœ ์‹œ์ž‘ํ•ด ๋‚ด์ƒ์  ํ˜์‹ ์œผ๋กœ ์ „ํ™˜ | ์ˆ˜๋ ด vs ํ˜์‹ ์˜ ์ด์ค‘์ฃผ. ๊ฒฝํ—˜์  ์งˆ๋ฌธ(catch-up)์œผ๋กœ ์‹œ์ž‘ํ•ด ์ด๋ก ์  ํ˜๋ช…(๋‚ด์ƒ์  ํ˜์‹ )์œผ๋กœ ์ „ํ™˜. ์šฐ๋ฆฌ๊ฐ€ ฯ„๋ฅผ ๋‚ด์ƒํ™”ํ•˜๋“ฏ, Romer๋Š” ์„ฑ์žฅ ์ž์ฒด๋ฅผ ๋‚ด์ƒํ™”. | | **๐ŸขEric<br>(Formal Theory)** | ์ „๋žต = ๋‹ค๋ฅธ ์„ ํƒ์„ ๊ฐ•์ œํ•˜๋Š” ์ตœ์†Œ ์„ ํƒ ์ง‘ํ•ฉ | ์ „๋žต์˜ ์žฌ๊ท€์  ์ •์˜. '๋‹ค๋ฅธ ์„ ํƒ์„ ๊ฐ•์ œํ•˜๋Š” ์ตœ์†Œ ์„ ํƒ ์ง‘ํ•ฉ'์ด๋ผ๋Š” ์ •์˜๊ฐ€ ์šฐ๋ฆฌ์˜ ์ด์ค‘ ์žฌ๋งค๊ฐœ๋ณ€์ˆ˜ํ™”(promise๊ฐ€ ๋‹ค๋ฅธ ๋ชจ๋“  ์„ ํƒ์„ ์ œ์•ฝ)์™€ ๊ณต๋ช…. | | **๐ŸขScott1<br>(S-curve)** | S-์ปค๋ธŒ๋ฅผ ์ฐฝ์—…๊ฐ€ ์„ ํƒ์˜ envelope์œผ๋กœ ์žฌ๊ฐœ๋…ํ™” | S-์ปค๋ธŒ ํŒจ๋Ÿฌ๋…์Šค์˜ ํ•ด๊ฒฐ. ๊ธฐ์ˆ  ๊ถค์ ์ด ์ฃผ์–ด์ง„ ๊ฒƒ์ด ์•„๋‹ˆ๋ผ ์ฐฝ์—…๊ฐ€ ์„ ํƒ์˜ envelope์ด๋ผ๋Š” ๊ด€์ ์ด ์šฐ๋ฆฌ์˜ '์•ฝ์† ์ˆ˜์ค€ ฯ†๊ฐ€ ์„ฑ๊ณต์„ ์ •์˜ํ•œ๋‹ค'์™€ ์ผ์น˜. | | **๐ŸขScott2<br>(Bayesian)** | ์ฐฝ์—…๊ฐ€์˜ ํŽธํ–ฅ๋œ ๋‚™๊ด€์ฃผ์˜๋ฅผ ๋ฒ ์ด์ง€์•ˆ์œผ๋กœ ํ˜•์‹ํ™” | ์ฐฝ์—…๊ฐ€์  ๋‚™๊ด€์ฃผ์˜์˜ ํ˜•์‹ํ™”. ํŽธํ–ฅ๋œ ๋ฏฟ์Œ์ด ์ „๋žต์  ์ž์‚ฐ์ด๋ผ๋Š” ํ†ต์ฐฐ. ์šฐ๋ฆฌ ๋ชจ๋ธ์˜ 'ฯ„ ์„ ํƒ์„ ํ†ตํ•œ ์ „๋žต์  ๋ฌด์ง€'์™€ ๊ฐ™์€ ๋งฅ๋ฝ. | | **๐ŸขCamuffo<br>(Theory-driven)** | ํ–‰๋™ ์ด์ „์— ์ด๋ก ์„ ์„ ํƒํ•˜๋Š” ๋ฉ”ํƒ€-์ธ์ง€ | ์ด๋ก  ์„ ํƒ์˜ ์ด๋ก . ํ–‰๋™ ์ด์ „์— ์ด๋ก ์„ ์„ ํƒํ•œ๋‹ค๋Š” ๋ฉ”ํƒ€-์ธ์ง€์  ์ ‘๊ทผ์ด ์šฐ๋ฆฌ์˜ '์•ฝ์† ์ด์ „์˜ ์—ด๋ง ์„ค์ •'๊ณผ ์œ ์‚ฌ. | | **๐Ÿ…Nanda<br>(Financing)** | ์ˆœ์ฐจ์  ํˆฌ์ž๋ฅผ ํ†ตํ•œ ๋ถˆํ™•์‹ค์„ฑ ํ•ด๊ฒฐ | ์‹คํ—˜์˜ ์ˆœ์ฐจ์  ๊ฐ€์น˜. ๋Œ€๋ถ€๋ถ„ ์‹คํŒจํ•˜์ง€๋งŒ ๊ทน์†Œ์ˆ˜ ๋Œ€์„ฑ๊ณต์ด๋ผ๋Š” ๋ถ„ํฌ๊ฐ€ ์šฐ๋ฆฌ ๋ชจ๋ธ์˜ high n ํ™˜๊ฒฝ๊ณผ ์ผ์น˜. | | **๐Ÿ…Nanda<br>(Killer)** | ํˆฌ์ž์ž-์ฐฝ์—…๊ฐ€ ๊ฐ„ ์‹คํ—˜ ์„ค๊ณ„ ๊ฐˆ๋“ฑ | ์ •๋ณด ์„ค๊ณ„์˜ ๋„๋•์  ํ•ด์ด. ํˆฌ์ž์ž๋Š” killer experiment(low ฯ„), ์ฐฝ์—…๊ฐ€๋Š” ์ƒ์กด ์‹คํ—˜(high ฯ„)์„ ์›ํ•˜๋Š” ๊ฐˆ๋“ฑ์ด ์šฐ๋ฆฌ ๋ชจ๋ธ์˜ ฯ„ ์„ ํƒ ๋”œ๋ ˆ๋งˆ์™€ ์ •ํ™•ํžˆ ์ผ์น˜. | | **๐Ÿ™Charlie<br>(Operations)** | ์ฐฝ์—… ๊ต์œก์—์„œ ์†Œ์™ธ๋œ ์šด์˜๊ด€๋ฆฌ์˜ ์ค‘์š”์„ฑ | ํ•™๋ฌธ์˜ ์‚ฌ๊ฐ์ง€๋Œ€ ์กฐ๋ช…. ์ฐฝ์—… ๊ต์œก์—์„œ ์šด์˜์ด ๋น ์ง„ ํ˜„์‹ค์„ ์ง€์ . ์šฐ๋ฆฌ๊ฐ€ c(๋ณต์žก์„ฑ)๋ฅผ ๋ช…์‹œ์ ์œผ๋กœ ๋ชจ๋ธ๋งํ•˜๋Š” ์ด์œ . | | **๐Ÿ‘พAndrew<br>(Parameterization)** | ๊ณ„์‚ฐ์  ํŽธ์˜๊ฐ€ ์ƒˆ๋กœ์šด ์ด๋ก  family ์ฐฝ์ถœ | **๊ณ„์‚ฐ์  ํŽธ์˜๊ฐ€ ์ด๋ก ์  ํ˜์‹ ์œผ๋กœ. Reparameterization์ด ์ƒˆ๋กœ์šด prior family๋ฅผ ์ฐฝ์ถœํ•œ๋‹ค๋Š” ํ†ต์ฐฐ์ด ์šฐ๋ฆฌ ์ด์ค‘ ์žฌ๋งค๊ฐœ๋ณ€์ˆ˜ํ™”์˜ ์ฒ ํ•™์  ๊ธฐ๋ฐ˜.** | | **๐Ÿ‘พAndrew<br>(Workflow)** | ์ถ”๋ก  ๋„ˆ๋จธ์˜ ๋ฐ˜๋ณต์  ๋ชจ๋ธ๋ง ๊ณผ์ • | ๋ฒ ์ด์ง€์•ˆ ์‹ค์ฒœ์˜ ํ˜„์‹ค. ์ถ”๋ก  ๋„ˆ๋จธ์˜ 'tangled workflow'๊ฐ€ ์šฐ๋ฆฌ์˜ ์ •๋ณด ํ†ตํ•ฉ ๋น„์šฉ i๋ฅผ ์ •๋‹นํ™”. | | **๐Ÿ‘พJosh<br>(Concept Learning)** | ๊ทน์†Œ์ˆ˜ ์˜ˆ์‹œ๋กœ ๊ฐœ๋… ํ•™์Šตํ•˜๋Š” ์ธ๊ฐ„ ๋Šฅ๋ ฅ | ๊ทน์†Œ์ˆ˜ ์˜ˆ์‹œ ํ•™์Šต์˜ ์—ญ์„ค. ์ธ๊ฐ„์ด ์ ์€ ์ƒ˜ํ”Œ๋กœ ์ผ๋ฐ˜ํ™”ํ•˜๋Š” ๋Šฅ๋ ฅ์ด ์šฐ๋ฆฌ ๋ชจ๋ธ์˜ 'rational ignorance'๋ฅผ ๋’ท๋ฐ›์นจ. | | **๐Ÿ‘พJosh<br>(One and Done)** | ์ ์€ ์ƒ˜ํ”Œ์˜ ๋น ๋ฅธ ๊ฒฐ์ •์ด ์žฅ๊ธฐ์  ์ตœ์  | ํ•ฉ๋ฆฌ์  ๋น„ํ•ฉ๋ฆฌ์„ฑ. ์ƒ˜ํ”Œ๋ง ๋น„์šฉ์„ ๊ณ ๋ คํ•˜๋ฉด ์ ์€ ์ƒ˜ํ”Œ์˜ ๋น ๋ฅธ ๊ฒฐ์ •์ด ์ตœ์ ์ด๋ผ๋Š” ํ†ต์ฐฐ์ด ์šฐ๋ฆฌ์˜ ฯ„โ†’0 ์กฐ๊ฑด๊ณผ ์™„๋ฒฝํžˆ ์ผ์น˜. | | **๐Ÿ‘พMeehl<br>(Theory Appraisal)** | Crud factor์™€ damn strange coincidences | ์ด๋ก  ํ‰๊ฐ€์˜ ์—„๋ฐ€์„ฑ. 'Crud factor'์™€ 'damn strange coincidences'๋กœ ์ด๋ก ์˜ ์ƒ์กด๋ ฅ์„ ์ธก์ •. ์šฐ๋ฆฌ ๋ชจ๋ธ์ด ์˜ˆ์ธกํ•˜๋Š” 'learning trap'๊ณผ 'rational ignorance'๊ฐ€ ๋ฐ”๋กœ ์ด๋Ÿฐ risky prediction. | ## ํ•ต์‹ฌ ํ†ต์ฐฐ: ์™œ ์ด ์ดˆ๋ก๋“ค์ด ์šฐ๋ฆฌ๋ฅผ ๋ฏธ์น˜๊ฒŒ ํ•˜๋Š”๊ฐ€ ### ๐Ÿ”ฅ ๊ณตํ†ต ํŒจํ„ด 1. **ํŒจ๋Ÿฌ๋…์Šค ํ•ด๊ฒฐ**: ๋Œ€๋ถ€๋ถ„์ด ๊ธฐ์กด ํ†ต๋…์˜ ๋ชจ์ˆœ์„ ๋” ๊นŠ์€ ์ธต์œ„์—์„œ ํ•ด๊ฒฐ 2. **๋ฉ”ํƒ€-๋ ˆ๋ฒจ ์ƒ์Šน**: ๋ฌธ์ œ ์ž์ฒด๋ฅผ ์žฌ์ •์˜ํ•˜์—ฌ ํ•ด๊ฒฐ (์ „๋žต์˜ ์ „๋žต, ์ด๋ก ์˜ ์ด๋ก ) 3. **๊ณ„์‚ฐ๊ณผ ๊ฐœ๋…์˜ ์œตํ•ฉ**: ํ˜•์‹ํ™”๊ฐ€ ์ƒˆ๋กœ์šด ํ†ต์ฐฐ์„ ๋‚ณ๋Š” ์ˆœ๊ฐ„๋“ค 4. **ํŽธํ–ฅ์˜ ์žฌํ‰๊ฐ€**: ๋น„ํ•ฉ๋ฆฌ์ ์œผ๋กœ ๋ณด์ด๋Š” ๊ฒƒ์ด ์‹ค์€ ์ตœ์ ์ผ ์ˆ˜ ์žˆ๋‹ค๋Š” ์—ญ์ „ ### ๐Ÿ’ก ์šฐ๋ฆฌ ์•ฝ์†์„ค๊ณ„์™€์˜ ๊ณต๋ช… - **์ด์ค‘ ์žฌ๋งค๊ฐœ๋ณ€์ˆ˜ํ™”**: Andrew์˜ parameterization ์ฒ ํ•™์˜ ๊ตฌํ˜„ - **์ „๋žต์  ๋ฌด์ง€**: Josh์˜ one-and-done ์ตœ์ ์„ฑ์˜ ์‹คํ˜„ - **๋ถˆํ™•์‹ค์„ฑ ์„ค๊ณ„**: Scott์˜ S-curve envelope ๊ด€์ ์˜ ํ™•์žฅ - **๋ฉ”ํƒ€-์ธ์ง€**: Camuffo์˜ ์ด๋ก  ์„ ํƒ ํ”„๋ ˆ์ž„์›Œํฌ์™€ ๋™์ผํ•œ ๊ตฌ์กฐ _"์ด ์ดˆ๋ก๋“ค์€ ๋ชจ๋‘ 'ํ‘œ๋ฉด ์•„๋ž˜ ๋” ๊ทผ๋ณธ์ ์ธ ๊ตฌ์กฐ๊ฐ€ ์žˆ๋‹ค'๋Š” ๋ฏฟ์Œ์„ ๊ณต์œ ํ•œ๋‹ค. ์šฐ๋ฆฌ์˜ ์•ฝ์†์„ค๊ณ„๋„ ํ–‰๋™vs๊ณ„ํš์ด๋ผ๋Š” ํ‘œ๋ฉด ์•„๋ž˜ ๋ถˆํ™•์‹ค์„ฑ ์„ค๊ณ„๋ผ๋Š” ๋” ๊นŠ์€ ์ธต์œ„๋ฅผ ๋ฐœ๊ฒฌํ–ˆ๋‹ค."_ --- [[09-11|25-09-11]] # sutton This paper re-examines the relationship between the R&D intensity of an industry and its level of concentration, from the perspective of the Bounds approach to market structure. In so doing, it proposes an index which summarises those aspects of technology and tastes that are relevant to the determination of a lower bound to concentration. # ๐Ÿขpaul on endogenous growth This paper describes two strands of work that converged under the heading of 'endogenous growth.' One strand, which is primarily empirical, asks whether there is a general tendency for poor countries to catch up with rich countries. The other strand, which is primarily theoretical, asks what modifications are necessary to construct a theory of aggregate growth that takes the economics of discovery, innovation, and technological change seriously. The paper argues that the second strand of work will ultimately have a more significant impact on our understanding of growth and our approach to aggregate theory. # ๐Ÿขeric on formal theory of strategy What makes a decision strategic? When is strategy most important? This paper formally studies these questions, starting from a (functional) de๏ฌnition of strategy as the smallest set of choices to optimally guide (or force) other choices. The paper shows that this de๏ฌnition coincides with the equilibrium outcome of a โ€œstrategy formulation game,โ€ in which such strategy endogenously creates a hierarchy among decisions. With respect to what makes a decision strategic and what makes strategy valuable, the paper considers the effect of commitment, reliability, and irreversibility of a decision; the presence of uncertainty (and the type of uncertainty); the number and strength of its interactions and the centrality of a decision; its level and importance; the development of capabilities; and competition. # ๐Ÿขscott1 on technology s curve A central premise of research in the strategic management of innovation is that start-ups are able to leverage emerging technological trajectories as a source of competitive advantage. But, if the potential for a technology is given by the fundamental character of a given technological trajectory, then why does entrepreneurial strategy matter? Or, put another way, if the evolution of technology is largely shaped by the strategic choices entrepreneurs make, then why do technological trajectories exhibit systematic patterns such as the technology S-curve? Taking a choice-based perspective, this paper illuminates the choices confronting a start-up choosing their technology by resolving the paradox of the technology S-curve through a reformulation of the foundations of the technology S-curve. Speci๏ฌcally, we reconceptualize the technology S-curve not as a technological given but as an envelope of potential outcomes re๏ฌ‚ecting differing strategic choices by the entrepreneur in exploration versus exploitation. Taking this lens, we are able to clarify the role of technological uncertainty on start-up strategy, the impact of constraints on technological evolution, and how technology choice is shaped by the possibility of imitation. Our ๏ฌndings suggest that staged exploration may stall innovation as a result of the replacement effect, increasing the strategic importance of commitment. # ๐Ÿขscott2 on bayesian entrepreneurship How does the fact that entrepreneurs choose the opportunity they pursue impact entrepreneurial strategy and performance? Entrepreneurs, while dealing with opportunities whose outcome is inherently uncertain, have choices that must be premised on a belief that the opportunity is worth pursuing. This insight provides an organizing principle for a Bayesian approach to entrepreneurial decision-making. A Bayesian approach offers a natural formal framework to assess how entrepreneurs form beliefs about the prospects for a given opportunity, how these beliefs evolve over time through active experimentation and learning, and the consequences of such beliefs for entrepreneurial strategy and performance.The goal is to shape distinctive implications and empirical approaches to the study of entrepreneurship guided by founding premises. The first premise is that the entrepreneur must be relatively optimistic about the opportunity relative to others. This involves a distinct theory that translates into a different perspective on the opportunityโ€™s prospects. Second, this systematic divergence in beliefs impacts how an entrepreneur will undertake learning about an opportunity. Notably, the demand for โ€œexperimentsโ€ is fundamentally influenced by beliefs about the opportunity. For example, relative to a disinterested agent, a Bayesian entrepreneur will conduct experiments that are more likely to allow for โ€œfalse positivesโ€ than โ€œfalse negatives.โ€ Finally, this approach promotes the processes by which entrepreneurs are able to attract resources and capabilities by providing information to other agents. Entrepreneurs are more likely to convince those who share their idiosyncratically optimistic beliefs about an opportunity (with implications for homophily and firm culture), yet will also engage in choosing experiments that cater to those with different (more negative) beliefs than they themselves hold. # ๐Ÿขcamuffo on theoretical driven decision making This paper studies strategic decisions under uncertainty for which past data are not available. It provides microfoundations of the theory-based view of the firm by showing that the strategic problem starts with the selection of theories rather than choosing actions and that theories are selected through experiments. The value of experimenting with theories increases with the number of theories and with their uncertainty. Moreover, uncertainty makes theories superadditiveโ€”that is, experimenting with a more uncertain theory increases the benefits of experimenting with other more uncertain theories. The paper also shows that decision makers should experiment with more โ€œsurprisingโ€ theories because in this case experiments are more informative and enable more learning. A leading example helps to illustrate our concepts throughout the paper. # ๐Ÿ…nanda on financing entrepreneurial experiment The fundamental uncertainty of new technologies at their earliest stages implies that it is virtually impossible to know the true potential of a venture without learning about its viability through a sequence of investments over time. We show how this process of experimentation can be particularly valuable in the context of entrepreneurship because most new ventures fail completely, and only a few become extremely successful. We also shed light on important costs to this process of experimentation and demonstrate how these can fundamentally alter both the rate and direction of startโ€‘up innovation across industries, regions, and periods of time. # ๐Ÿ…nanda on killer experiment We develop a model of learning through experimentation in a principal-agent framework. Investors only observe an experimentโ€™s outcome, but entrepreneurs can impact the information contained in the outcome through the experimentโ€™s design. Investors prefer โ€˜killer experimentsโ€™ that are more likely to correctly identify true successes and failures, but entrepreneurs prefer to design experiments that are less likely to fail. We show that the ensuing moral hazard can create a market failure in financing the venture, which cannot be resolved through higher-powered incentives for the entrepreneur such as standard โ€˜pay for performanceโ€™ contracts. Our results speak to an important potential friction in the commercialization of innovations, particularly ones in areas such as โ€˜Deep Techโ€™ ventures based on fundamental science, that lack well-understood methodologies for investors to effectively validate the information contained in early experiments. # ๐Ÿ™charlie on operations for entrepreneur Although entrepreneurship-related papers have had some representation in Production and Operations Management (POM) over the past 30 years, the topic still seems a bit like a poor stepchild in the research of operations management (OM) scholars. Yet, entrepreneurship is important to the economy, and many schools are growing signi๏ฌcantly their entrepreneurship programs and offerings but often without reference to or inclusion of operations courses. This paper is motivated by the question of the operations needs of new ventures and how they might differ from the needs of large, established ๏ฌrms. Toward that end, we review brie๏ฌ‚y the state of entrepreneurship scholarship in POM (and beyond), present our own (๏ฌeld-based) research (and cases), and propose a framework for what we call โ€œoperations for entrepreneurs,โ€ that we hope can be a basis for further productive research and curriculum development by the OM community. # ๐Ÿ‘พandrew on parameterization and bayesian modeling Progress in statistical computation often leads to advances in statistical modeling. For example, it is surprisingly common that an existing model is reparameterized, solely for computational purposes, but then this new configuration motivates a new family of models that is useful in applied statistics. One reason why this phenomenon may not have been noticed in statistics is that reparameterizations do not change the likelihood. In a Bayesian framework, however, a transformation of parameters typically suggests a new family of prior distributions. We discuss examples in censored and truncated data, mixture modeling, multivariate imputation, stochastic processes, and multilevel models. # ๐Ÿ‘พandrew on bayesian workflow The Bayesian approach to data analysis provides a powerful way to handle uncertainty in all observations, model parameters, and model structure using probability theory. Probabilistic programming languages make it easier to specify and ๏ฌt Bayesian models, but this still leaves us with many options regarding constructing, evaluating, and using these models, along with many remaining challenges in computation. Using Bayesian inference to solve real-world problems requires not only statistical skills, subject matter knowledge, and programming, but also awareness of the decisions made in the process of data analysis. All of these aspects can be understood as part of a tangled work๏ฌ‚ow of applied Bayesian statistics. Beyond inference, the work๏ฌ‚ow also includes iterative model building, model checking, validation and troubleshooting of computational problems, model understanding, and model comparison. We review all these aspects of work๏ฌ‚ow in the context of several examples, keeping in mind that in practice we will be ๏ฌtting many models for any given problem, even if only a subset of them will ultimately be relevant for our conclusions. # ๐Ÿ‘พjosh on bayesian modeling of human concept learning I consider the problem of learning concepts from small numbers of positive examples, a feat which humans perform routinely but which computers are rarely capable of. Bridging machine learning and cognitive science perspectives, I present both theoretical analysis and an empirical study with human subjects for the simple task oflearning concepts corresponding to axis-aligned rectangles in a multidimensional feature space. Existing learning models, when applied to this task, cannot explain how subjects generalize from only a few examples of the concept. I propose a principled Bayesian model based on the assumption that the examples are a random sample from the concept to be learned. The model gives precise fits to human behavior on this simple task and provides qualitative insights into more complex, realistic cases of concept learning. # ๐Ÿ‘พjosh on one and done Optimal Decisions From Very Few Samples In many learning or inference tasks human behavior approximates that of a Bayesian ideal observer, suggesting that, at some level, cognition can be described as Bayesian inference. However, a number of ๏ฌndings have highlighted an intriguing mismatch between human behavior and standard assumptions about optimality: People often appear to make decisions based on just one or a few samples from the appropriate posterior probability distribution, rather than using the full distribution. Although sampling-based approximations are a common way to implement Bayesian inference, the very limited numbers of samples often used by humans seem insuf๏ฌcient to approximate the required probability distributions very accurately. Here, we consider this discrepancy in the broader framework of statistical decision theory, and ask: If people are making decisions based on samplesโ€”but as samples are costlyโ€”how many samples should people use to optimize their total expected or worst-case reward over a large number of decisions? We ๏ฌnd that under reasonable assumptions about the time costs of sampling, making many quick but locally suboptimal decisions based on very few samples may be the globally optimal strategy over long periods. These results help to reconcile a large body of work showing sampling-based or probability matching behavior with the hypothesis that human cognition can be understood in Bayesian terms, and they suggest promising future directions for studies of resource-constrained cognition. # ๐Ÿ‘พMeehl on Appraising and Amending Theories In social science, everything is somewhat correlated with everything (โ€œcrud factorโ€), so whether H 0 is refuted depends solely on statistical power. In psychology, the directional counternull of interest, H*, is not equivalent to the substantive theory T, there being many plausible alternative explanations of a mere directional trend (weak use of significance tests). Testing against a predicted point value (the strong use of significant tests) can discorroborate T by refuting H*. If used thus to abandon T forthwith, it is too strong, not allowing for theoretical verisimilitude as distinguished from truth. Defense and amendment of an apparently falsified T are appropriate strategies only when T has accumulated a good track record (โ€œmoney in the bankโ€) by making successful or near-miss predictions of low prior probability (Salmonโ€™s โ€œdamn strange coincidencesโ€). Two rough indexes are proposed for numerifying the track record, by considering jointly how intolerant (risky) and how close (accurate) are its predictions. --- ๊ฐ ๋…ผ๋ฌธ์ด **๋ฌธ์ œ ์ œ๊ธฐ(๐Ÿข) โ†’ ์ด๋ก  ๊ตฌ์ถ•(๐Ÿ…) โ†’ ์ ์šฉ ๋ฐ ํ™•์žฅ(๐Ÿ™) โ†’ ๋งˆ๋ฌด๋ฆฌ(๐Ÿ‘พ)**๋ผ๋Š” ๊ณตํ†ต๋œ ๋…ผ๋ฆฌ์  ํ๋ฆ„์„ ๋”ฐ๋ฅด๋ฉด์„œ๋„, ์ €์ž์˜ ์Šคํƒ€์ผ์— ๋”ฐ๋ผ ๊ฐ ๋‹จ๊ณ„์˜ ๊ตฌ์„ฑ๊ณผ ๊ฐ•์กฐ์ ์ด ์–ด๋–ป๊ฒŒ ๋‹ฌ๋ผ์ง€๋Š”์ง€ ๋ช…ํ™•ํžˆ ๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. --- ### **์„ธ ๋…ผ๋ฌธ ๊ตฌ์กฐ ๋น„๊ต: ๐Ÿข๐Ÿ…๐Ÿ™๐Ÿ‘พ ํ”„๋ ˆ์ž„์›Œํฌ** using [[๐Ÿข๐Ÿ…๐Ÿ™๐Ÿ‘พ์˜์šฉ๊ตฐํ˜„์ง€์Šคํƒ€์ผ]] |๊ตฌ์กฐ|์—ญํ• |Gans et al. (Scott Stern) <br> **[์ด๋ก  ์ค‘์‹ฌ]**|Fine et al. (Charlie Fine) <br> **[์‹ค๋ฌด ์ค‘์‹ฌ]**|Bolton et al. <br> **[๋ชจ๋ธ ์ค‘์‹ฌ]**| |---|---|---|---|---| |**๐Ÿข<br>๊ธฐ(่ตท)**|**๋ฌธ์ œ ์ œ๊ธฐ** <br> (Why this paper?)|**Sec 1. Introduction** <br> **Sec 2. The S-Curve Paradox** <br> S-์ปค๋ธŒ์˜ ์ด๋ก ์  ํŒจ๋Ÿฌ๋…์Šค๋ฅผ ์ œ์‹œํ•˜๋ฉฐ ๋ฌธ์ œ์˜ ๊นŠ์ด๋ฅผ ๋”ํ•จ|**Sec 1. Introduction** <br> **Sec 2. Literature Review** <br> ์‹ค๋ฌด์™€ ํ•™๊ณ„์˜ ๊ดด๋ฆฌ(Gap)๋ฅผ ์ง€์ ํ•˜๋ฉฐ ์—ฐ๊ตฌ์˜ ํ•„์š”์„ฑ์„ ๊ฐ•์กฐ|**Sec 1. Introduction** <br> "์‹คํ—˜ ์„ค๊ณ„์—์„œ์˜ ์ƒˆ๋กœ์šด ๋„๋•์  ํ•ด์ด"๋ผ๋Š” ํ•ต์‹ฌ ๋ฌธ์ œ๋ฅผ ๊ฐ„๊ฒฐํ•˜๊ฒŒ ์ •์˜| |**๐Ÿ…<br>์Šน(ๆ‰ฟ)**|**์ด๋ก  & ๋ชจ๋ธ** <br> (What is the engine?)|**Sec 3. A Choice-Based Approach...** <br> **Sec 4. A Simple Model...** <br> ๊ฐœ๋…์  ํ”„๋ ˆ์ž„์›Œํฌ๋ฅผ ๋จผ์ € ์ œ์‹œํ•˜๊ณ , ์ˆ˜๋ฆฌ ๋ชจ๋ธ๋กœ ๊ตฌ์ฒดํ™”|**Sec 3. Nailing, Scaling, and Sailing** <br> ํ˜„์žฅ ๊ด€์ฐฐ์„ ๋ฐ”ํƒ•์œผ๋กœ ํ•œ ์‹ค์šฉ์ ์ธ 3๋‹จ๊ณ„ ํ”„๋ ˆ์ž„์›Œํฌ๋ฅผ ์ œ์‹œ|**Sec 2. Relation to Literature** <br> **Sec 3. The Model** <br> ๋ฌธํ—Œ์  ๋งฅ๋ฝ์„ ์งš์€ ํ›„, ์ •๊ตํ•˜๊ณ  ์ƒ์„ธํ•œ ์ˆ˜๋ฆฌ ๋ชจ๋ธ์„ ๊ตฌ์ถ•| |**๐Ÿ™<br>์ „(่ฝ‰)**|**์‘์šฉ & ํ•จ์˜** <br> (How does it work?)|**Sec 5. Industry-Level...** <br> **Sec 6. Implications for Strategy...** <br> ๋ชจ๋ธ์„ ์‚ฐ์—… ์ˆ˜์ค€์œผ๋กœ ํ™•์žฅํ•˜๊ณ , ์ „๋žต ๋ฐ ์ •์ฑ…์  ํ•จ์˜๋ฅผ ๋„์ถœ|**Sec 4. Case Examples...** <br> ๋‹ค์–‘ํ•œ ์‹ค์ œ ์‚ฌ๋ก€์— ํ”„๋ ˆ์ž„์›Œํฌ๋ฅผ ์ ์šฉํ•˜์—ฌ ํƒ€๋‹น์„ฑ์„ ์ฆ๋ช…|**Sec 4. Policy Responses** <br> ๋ชจ๋ธ์˜ ๊ฒฐ๊ณผ๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ํ˜„์‹ค์— ์ ์šฉ ๊ฐ€๋Šฅํ•œ ์ •์ฑ…์  ๋Œ€์•ˆ์„ ํƒ๊ตฌ| |**๐Ÿ‘พ<br>๊ฒฐ(็ต)**|**๊ฒฐ๋ก ** <br> (So what?)|(๋ณ„๋„ ๊ฒฐ๋ก  ์—†์Œ) <br> **Sec 6. Implications...** <br> ์ •์ฑ…์  ํ•จ์˜๋ฅผ ์ œ์‹œํ•˜๋ฉฐ ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ๋งˆ๋ฌด๋ฆฌ|**Sec 5. Discussion, Conclusion...** <br> ์—ฐ๊ตฌ๋ฅผ ์š”์•ฝํ•˜๊ณ  ํ•œ๊ณ„์™€ ํ–ฅํ›„ ์—ฐ๊ตฌ ๋ฐฉํ–ฅ์„ ๋ช…์‹œํ•˜๋Š” ์ „ํ˜•์  ๊ตฌ์กฐ|**Sec 5. Conclusion** <br> ์—ฐ๊ตฌ์˜ ํ•ต์‹ฌ ๋ฐœ๊ฒฌ๊ณผ ์ด๋ก ์  ๊ธฐ์—ฌ๋ฅผ ๊ฐ„๊ฒฐํ•˜๊ฒŒ ์š”์•ฝํ•˜๋ฉฐ ๋งˆ๋ฌด๋ฆฌ| ---- entrepreneur's innovation (idea to impact) should be designed as idea's implementation and adoption of that implementation. i'll analyze the five paper that i adopted and reverse engineer this. [[๐Ÿ’ integ(process-product)]] [[moon24]] ## interesting using Davis' Index of the Interesting. I'm aware of the [need for bridge from interesting to important](https://journals.aom.org/doi/10.5465/amj.2020.4002), but paper has interesting lowbar to pass to even be judged on its importance. | Type of Interestingness | Why it's Interesting | | ----------------------------------------------- | -------------------------------------------------------------------------------------------------- | | Order from Chaos | What seems disorganized and unstructured is really organized and structured | | Chaos from Order | What seems organized and structured is really unstructured and disorganized | | Simplicity in the Complex (Invisible Structure) | What seems like heterogeneous phenomena are really a single phenomenon | | Complexity in the Simple (False Structure) | What seems like a single phenomenon is really heterogeneous phenomena | | The Psychological is Social | What seems like an individual phenomenon is really holistic | | The Social is Psychological | What seems like a holistic phenomenon is really individual | | The Social-Psychological | What seems holistic or individual is really a property of the relation between the two | | Local is General | What seems like a local phenomenon is real generalizable | | General is Local or Contextual | What seems like a general phenomenon is really local or context-dependent | | Unobserved Dynamism | What seems stable and unchanging is really unstable and changing | | Unobserved Regularity or Periodicity | What seems unstable and changing is really regular and repeating | | Unobserved Functionality | What seems ineffective for achieving an end is really functional | | Unobserved Dysfunction | What seems functional for achieving an end is really ineffective | | Unobserved Good | What seems like a bad phenomenon is really good | | Unobserved Bad | What seems like a good phenomenon is really bad | | Unobserved Correlation | What seem like independent phenomena are really interrelated | | False Correlation | What seem like interrelated phenomena are really independent | | False Coexistence | What seem like phenomena that can exist together really cannot exist together | | Surprise Coexistence | What seem like phenomena that cannot exist together can really exist together | | False Positive | What seems like positive covariation is really negative covariation | | False Negative | What seems like negative covariation is really positive covariation | | Header (General) | Incremental is continuous, continuous is incremental, curvilinear is linear, linear is curvilinear | | False Similarity | What seem like nearly similar phenomena are really opposite phenomena | | False Difference | What seem like different phenomena are really the same | | Dependent Variable is Independent Variable | What seems like the predictor is really the outcome | | Independent Variable is Dependent Variable | What seems like the outcome is really the predictor | | One-Way relationship is Complex | What seems like a direct relationship is really a mutual or non-recursive relationship | ## implementable it should have a tool to implement what the audience learn. - how to resolve "resistance to change" - if supplying the research for the audience with economics background, i should camouflage the language to what they can (and don't have uncomfortableness in) digesting. | Application of Research method (Bayesian Computation and Simulation | Bible (2020+) | Relevance to Angie's Problem | Seed paper for | Limitation | outside school but insightful | Current Frontier | interacting | honorable mention | | ---------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- | ------------------------------ | --------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------- | | Application1 <br>Modeling workflow<br> | Bayesian Workflow (statistics)<br><br>World to Word Model (cognition)<br><br>Analytical Methods for Dynamic Modelers (dynamics) | experiment choice (which data to collect)<br><br>rational meaning construction | 1๏ธโƒฃParameterization & Modeling<br>[[_ref/Gelman04_parameterizationBayes.pdf]] (Andrew Gelman's favorite)<br>[[๐Ÿ“œgelman04]] | Holes in Bayesian Stats<br><br>data collection is not cast as resource allocation | Computational Rationality | posterior SBC (statistics)<br><br>ADEV (computer science) | Andrew (statistics)<br><br>Vikash (computer science)<br><br>Tom (dynamics) | [[๐Ÿ“œgans23_choose(ent, exp)]] | | Application2<br>Operations and Innovation Management using Bayesian computation and simulation | Bayesian Entrepreneurship<br><br>Product development and opportunity tournament | <br><br><br>what to be uncertain about | 4๏ธโƒฃempirical approach recipe [[๐Ÿ“œMackeyBarneyDotson15_CorpDiv]] [[_ref/MackeyBarneyDotson15_CorporateDiv.pdf]] (Jay Barney's favorite)<br><br> | | 3๏ธโƒฃOperations for entrepreneur | Need Analysis capturing psychological inventory (Moshe) | Moshe (choice analysis, demand modeling)<br><br>Scott (economics of idea, innovation, entrepreneurship)<br><br>Charlie (decision science, operations management) | | | Counterfactual - Operations and Innovation Management without Bayesian Computation | | | 2๏ธโƒฃ[[๐Ÿ“œMeehl90_appraising_amend]] | 2๏ธโƒฃOne and Done (Efficiency) | | | | |